Finding the Fourth Proportional to 1,082.51, 1,494.07 and 708.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,082.51 : 1,494.07 = 708.83 : x
2. Step 2: Convert to fraction form
   1,082.51/1,494.07 = 708.83/x
3. Step 3: Cross multiply
   1,082.51x = 1,494.07 × 708.83
4. Step 4: Simplify right side
   1,082.51x = 1,059,032.40
5. Step 5: Solve for x
   x = 1,059,032.40/1,082.51
6. Step 6: Final answer
   x = 978.32