The following table contains information about four potential investment projects that Castle Corporation is considering. Project Project Life 5 NPV Required Investment $ 660,000 $ 910,000 $1,160,000 $1,660,000 Acctg ROR 21.008 18.000 10.508 13.208 Payback Period 3.2 3.6 3.3 3.7 $ 223,750 $ 211,562 $ 216,920 $ 246,258 Profitability Index 1.16 2.22 1.37 1.32 5 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