Finding the Fourth Proportional to 1,150.17, 1,587.36 and 708.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.17 : 1,587.36 = 708.06 : x
2. Step 2: Convert to fraction form
   1,150.17/1,587.36 = 708.06/x
3. Step 3: Cross multiply
   1,150.17x = 1,587.36 × 708.06
4. Step 4: Simplify right side
   1,150.17x = 1,123,942.58
5. Step 5: Solve for x
   x = 1,123,942.58/1,150.17
6. Step 6: Final answer
   x = 977.20