Finding the Fourth Proportional to 1,101.16, 1,519.50 and 658.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,101.16 : 1,519.50 = 658.96 : x
2. Step 2: Convert to fraction form
   1,101.16/1,519.50 = 658.96/x
3. Step 3: Cross multiply
   1,101.16x = 1,519.50 × 658.96
4. Step 4: Simplify right side
   1,101.16x = 1,001,289.72
5. Step 5: Solve for x
   x = 1,001,289.72/1,101.16
6. Step 6: Final answer
   x = 909.30