Oriole Bancorp has made an investment in banking software at a cost of $$1,856,200.$ If management expects productivity gains and cost savings to generate additional cash flows of $$556,900,$ $$777,600,$ $$449,600,$ and $$352,760$ over the next four years, what is the investment's payback period? $($Round answer to $2$ decimal places, e$.$g$.15\mathrm{.}25.)$CuriSvaf taPayback period isyears