Finding the Fourth Proportional to 1,101.92, 1,520.10 and 659.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,101.92 : 1,520.10 = 659.56 : x
2. Step 2: Convert to fraction form
   1,101.92/1,520.10 = 659.56/x
3. Step 3: Cross multiply
   1,101.92x = 1,520.10 × 659.56
4. Step 4: Simplify right side
   1,101.92x = 1,002,597.16
5. Step 5: Solve for x
   x = 1,002,597.16/1,101.92
6. Step 6: Final answer
   x = 909.86