Suppose a 80-pound weight is placed at the left end of a 4-foot plank of wood (the lever). A 40-pound weight is placed on the right end of the plank. According the Law of the Lever, how far from the left end of the plank should a fulcrum be placed in order to balance the weights?

Answer: Place it feet from the left side of fulcrum.
Round your answer to TWO decimal places (hudredths).