Finding the Fourth Proportional to 1,233.38, 1,701.88 and 709.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,233.38 : 1,701.88 = 709.31 : x
2. Step 2: Convert to fraction form
   1,233.38/1,701.88 = 709.31/x
3. Step 3: Cross multiply
   1,233.38x = 1,701.88 × 709.31
4. Step 4: Simplify right side
   1,233.38x = 1,207,162.98
5. Step 5: Solve for x
   x = 1,207,162.98/1,233.38
6. Step 6: Final answer
   x = 978.74