A uniform plank of length 5.7 m and weight 238 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the...

A uniform plank of length 5.7 m and weight 238 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 456 N walk on the overhanging part of the plank before it just begins to tip?