Finding the Fourth Proportional to 1,039.33, 1,432.65 and 707.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039.33 : 1,432.65 = 707.18 : x
2. Step 2: Convert to fraction form
   1,039.33/1,432.65 = 707.18/x
3. Step 3: Cross multiply
   1,039.33x = 1,432.65 × 707.18
4. Step 4: Simplify right side
   1,039.33x = 1,013,145.01
5. Step 5: Solve for x
   x = 1,013,145.01/1,039.33
6. Step 6: Final answer
   x = 974.81