The following table contains information about four potential investment projects that Castle Corporation is considering. Project Project Life 5 Required Investment $ 780,000 $1,030,000 $1,280,000 $1,780,000 Acctg ROR 30.008 19.508 15.00 17.708 Payback Period 3.8 4.2 NPV $ 346,750 $ 366,562 $ 218,420 $ 247,758 Profitability Index 2.66 2.10 1.49 1.44 5 3.1 Required: 1. Rank the four projects in order of preference under each method indicated by the headers: Accounting Rate of Return Payback Period Net Present Value Profitability Index 1st preferred 2nd preferred 3rd preferred 4th preferred