You could do this in any of several ways. One way would be to draw a cross section of the table with the radius and use Follow Me to sweep the shape around a circle (or arc)). Another way would be to draw the profile on the back edge of the top and again use Follow Me to sweep the profile around. If kind of depends upon what you've already got drawn.

as above
and look at this post
http://sketchucation.com/forums/viewtopic.php?t=41582

Thank you very much for the speedy reply. I can't wait to give your suggestions a try.