Finding the Fourth Proportional to 1,150.02, 1,585.17 and 913.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.02 : 1,585.17 = 913.50 : x
2. Step 2: Convert to fraction form
   1,150.02/1,585.17 = 913.50/x
3. Step 3: Cross multiply
   1,150.02x = 1,585.17 × 913.50
4. Step 4: Simplify right side
   1,150.02x = 1,448,052.80
5. Step 5: Solve for x
   x = 1,448,052.80/1,150.02
6. Step 6: Final answer
   x = 1,259.15