Finding the Fourth Proportional to 1,610.43, 2,221.28 and 1,132.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,610.43 : 2,221.28 = 1,132.89 : x
2. Step 2: Convert to fraction form
   1,610.43/2,221.28 = 1,132.89/x
3. Step 3: Cross multiply
   1,610.43x = 2,221.28 × 1,132.89
4. Step 4: Simplify right side
   1,610.43x = 2,516,468.56
5. Step 5: Solve for x
   x = 2,516,468.56/1,610.43
6. Step 6: Final answer
   x = 1,562.61