How to make the curve for the storage under the tray

I started by snapping the poles to the grid, i then used the three point tool to mark where the curve would start and end I then selected the face and then the curve and then pressed extrude, then i increased the divisions so it would actually curve

I then deleted the faces on the end and merged the vertices and combined the object to make the finished shape.













I didn't know how to make a curve like this but after being shown it is quite a simple and easy process to carry out.