Finding the Fourth Proportional to 1,107.25, 1,526.37 and 708.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,107.25 : 1,526.37 = 708.86 : x
2. Step 2: Convert to fraction form
   1,107.25/1,526.37 = 708.86/x
3. Step 3: Cross multiply
   1,107.25x = 1,526.37 × 708.86
4. Step 4: Simplify right side
   1,107.25x = 1,081,978.82
5. Step 5: Solve for x
   x = 1,081,978.82/1,107.25
6. Step 6: Final answer
   x = 977.17