A person is standing on a level floor. His head, upper torso, arms, and hands together weigh 401 N and have a center of gravity that is 1.39 m above the floor. His upper legs weigh 119 N and have a center of gravity that is 0.755 m above the floor. Finally, his lower legs and feet together weigh 98.1 N and have a center of gravity that is 0.262 m above the floor. Relative to the floor, find the location of the center of gravity for the entire body.