Finding the Fourth Proportional to 2,022.29, 3,031.20 and 851.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,022.29 : 3,031.20 = 851.96 : x
2. Step 2: Convert to fraction form
   2,022.29/3,031.20 = 851.96/x
3. Step 3: Cross multiply
   2,022.29x = 3,031.20 × 851.96
4. Step 4: Simplify right side
   2,022.29x = 2,582,461.15
5. Step 5: Solve for x
   x = 2,582,461.15/2,022.29
6. Step 6: Final answer
   x = 1,277.00