Finding the Fourth Proportional to 1,233.98, 1,702.90 and 710.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,233.98 : 1,702.90 = 710.02 : x
2. Step 2: Convert to fraction form
   1,233.98/1,702.90 = 710.02/x
3. Step 3: Cross multiply
   1,233.98x = 1,702.90 × 710.02
4. Step 4: Simplify right side
   1,233.98x = 1,209,084.50
5. Step 5: Solve for x
   x = 1,209,084.50/1,233.98
6. Step 6: Final answer
   x = 979.82