Finding the Fourth Proportional to 1,131.27, 1,561.48 and 659.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.27 : 1,561.48 = 659.27 : x
2. Step 2: Convert to fraction form
   1,131.27/1,561.48 = 659.27/x
3. Step 3: Cross multiply
   1,131.27x = 1,561.48 × 659.27
4. Step 4: Simplify right side
   1,131.27x = 1,029,439.18
5. Step 5: Solve for x
   x = 1,029,439.18/1,131.27
6. Step 6: Final answer
   x = 909.99