Pharoah Bancorp has made an investment in banking software at a cost of $1,756,200. If management expects productivity gains and cost savings to generate additional cash flows of $556,900,$687,600,$469,600, and $362,760 over the next four y\$ars, what is the investment's payback period? (Round answer to 2 decimal places, e.g. 15.25.) Payback period is years