Finding the Fourth Proportional to 1,241.50, 1,713.15 and 710.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,241.50 : 1,713.15 = 710.27 : x
2. Step 2: Convert to fraction form
   1,241.50/1,713.15 = 710.27/x
3. Step 3: Cross multiply
   1,241.50x = 1,713.15 × 710.27
4. Step 4: Simplify right side
   1,241.50x = 1,216,799.05
5. Step 5: Solve for x
   x = 1,216,799.05/1,241.50
6. Step 6: Final answer
   x = 980.10