Susan is considering adding toys to her gift shop. She estimates that the cost of inventory will be $$9,000.$ The remodeling expenses and shelving costs are estimated at $$700.$ Toy sales are expected to produce net cash inflows of $$2,400,$ $$2,600,$ $$4,400,$ and $$4,400$ over the next four years, respectively. What is the payback period? $($Please round to three decimal places$).$ Think about the feasibility if she assigns a four$-$year payback period to this project.