Finding the Fourth Proportional to 1,101.62, 1,520.16 and 659.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,101.62 : 1,520.16 = 659.30 : x
2. Step 2: Convert to fraction form
   1,101.62/1,520.16 = 659.30/x
3. Step 3: Cross multiply
   1,101.62x = 1,520.16 × 659.30
4. Step 4: Simplify right side
   1,101.62x = 1,002,241.49
5. Step 5: Solve for x
   x = 1,002,241.49/1,101.62
6. Step 6: Final answer
   x = 909.79