Finding the Fourth Proportional to 1,150.98, 1,587.15 and 757.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.98 : 1,587.15 = 757.50 : x
2. Step 2: Convert to fraction form
   1,150.98/1,587.15 = 757.50/x
3. Step 3: Cross multiply
   1,150.98x = 1,587.15 × 757.50
4. Step 4: Simplify right side
   1,150.98x = 1,202,266.13
5. Step 5: Solve for x
   x = 1,202,266.13/1,150.98
6. Step 6: Final answer
   x = 1,044.56