Finding the Fourth Proportional to 1,150.23, 1,587.62 and 708.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.23 : 1,587.62 = 708.50 : x
2. Step 2: Convert to fraction form
   1,150.23/1,587.62 = 708.50/x
3. Step 3: Cross multiply
   1,150.23x = 1,587.62 × 708.50
4. Step 4: Simplify right side
   1,150.23x = 1,124,825.90
5. Step 5: Solve for x
   x = 1,124,825.90/1,150.23
6. Step 6: Final answer
   x = 977.92