I am trying to make a full page table using tabularx. As far as I can understand, the second parameter specifies the entire size and the "X" columns self-stretch to fill it up. What I run into is a table that is split at the end of the page and I cannot seem to make it shift to the right. What am I doing wrong here? I should also mentioned I've tried experimeting with textheight and textwidth but could not figure out how to force the width.
Example code below:
\documentclass[a4paper,12pt]{scrartcl}
\usepackage{pdflscape}
\usepackage{tabularx}
\usepackage{lipsum}
\begin{document}
\begin{landscape}
\begin{tabularx}{290mm}{|c|c|c|X|}
\hline
Lorem & Lorem & Lorem & \lipsum[1] \\
\hline
\end{tabularx}
\end{landscape}
\end{document}