Need help don't understand

A young work crew is trying to quickly finish some touch-up painting to complete a job. Rather than setting up a secure work area, they decide to try a shortcut. Worker A will hold the far end of a 8.00 m work plank that weighs 114 N and is secured with a hinge on the opposite end. Worker B will stand on the plank 4.22 m from worker A. Worker B also brings up his paint can of mass m. = 3.58 kg, which he places 0.430 m from where he is standing on the plank (between the two workers). Worker A needs to supply 483 N of force to keep the end of the plank stable. The acceleration due to gravity is g = 9.81 m/s%. How much Wg does worker B weigh? e )