Finding the Fourth Proportional to 1,130.52, 1,560.07 and 658.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,130.52 : 1,560.07 = 658.43 : x
2. Step 2: Convert to fraction form
   1,130.52/1,560.07 = 658.43/x
3. Step 3: Cross multiply
   1,130.52x = 1,560.07 × 658.43
4. Step 4: Simplify right side
   1,130.52x = 1,027,196.89
5. Step 5: Solve for x
   x = 1,027,196.89/1,130.52
6. Step 6: Final answer
   x = 908.61