Finding the Fourth Proportional to 1,107.30, 1,528.29 and 659.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,107.30 : 1,528.29 = 659.27 : x
2. Step 2: Convert to fraction form
   1,107.30/1,528.29 = 659.27/x
3. Step 3: Cross multiply
   1,107.30x = 1,528.29 × 659.27
4. Step 4: Simplify right side
   1,107.30x = 1,007,555.75
5. Step 5: Solve for x
   x = 1,007,555.75/1,107.30
6. Step 6: Final answer
   x = 909.92