Alignment and dotfill in 3-column longtable

Question

I am trying to create a 6.5in longtable with 3 columns (Name, Major/University, Date). I would like the first and second cells to be left-aligned, while the third cell is right-aligned. I want to use \dotfill between the cells.

I am still new to customizing the parameters in tables, but this is what I have now. As can be seen, there is a space between the dots in the 2nd and 3rd cell for each row. I would like it if I could close this gap, and I'm not sure how. I tried putting @{} after the >{\dotfill\raggedleft\arraybackslash} but that raised an error.

Here is a MWE and picture of output.

\documentclass{minimal}

\usepackage{longtable}
\usepackage{array}

\begin{document}

\begin{center}
    \begin{longtable}{@{}p{1.625in}<{\dotfill}@{}p{3.875in}<{\dotfill}@{}@{}>{\dotfill\raggedleft\arraybackslash}p{1in}@{}}

        First Last & Some Thing and Some Thing, Some Where and Some Where & 2019 \\
        FirstFirst LastLast & Some Thing and Some Other Thing, Some Where, Somewhere & 2019 \\
        FirstFirst Last & Something, Somewhere & 2018 - 2019 \\
        First LastLast & Something Something, Somewhere Somewhere & Fall 2019 \\
        First Middle Last & Thing, Where & Summer 2019 \\
        First Middle Middle Last & Something, Where & Spring 2019 \\
        First Last & Something Some Other Thing, Somewhere and Somewhere & Winter 2019 \\

    \end{longtable}
\end{center}

\end{document}

Answer 1

simpler to use two columns:

\documentclass{minimal}

\usepackage{longtable}
\usepackage{array}

\begin{document}

% not around longtable \begin{center}
    \begin{longtable}{@{}p{1.625in}<{\dotfill}@{}p{4.875in}@{}}

        First Last & Some Thing and Some Thing, Some Where and Some Where \dotfill 2019 \\
        FirstFirst LastLast & Some Thing and Some Other Thing, Some Where, Somewhere \dotfill 2019 \\
        FirstFirst Last & Something, Somewhere \dotfill 2018 - 2019 \\
        First LastLast & Something Something, Somewhere Somewhere \dotfill Fall 2019 \\
        First Middle Last & Thing, Where \dotfill Summer 2019 \\
        First Middle Middle Last & Something, Where \dotfill Spring 2019 \\
        First Last & Something Some Other Thing, Somewhere and Somewhere \dotfill Winter 2019 \\

    \end{longtable}
% \end{center}

\end{document}