Finding the Fourth Proportional to 1,130.84, 1,560.50 and 658.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,130.84 : 1,560.50 = 658.72 : x
2. Step 2: Convert to fraction form
   1,130.84/1,560.50 = 658.72/x
3. Step 3: Cross multiply
   1,130.84x = 1,560.50 × 658.72
4. Step 4: Simplify right side
   1,130.84x = 1,027,930.31
5. Step 5: Solve for x
   x = 1,027,930.31/1,130.84
6. Step 6: Final answer
   x = 909.00