Finding the Fourth Proportional to 1,084.43, 1,496.11 and 711.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,084.43 : 1,496.11 = 711.61 : x
2. Step 2: Convert to fraction form
   1,084.43/1,496.11 = 711.61/x
3. Step 3: Cross multiply
   1,084.43x = 1,496.11 × 711.61
4. Step 4: Simplify right side
   1,084.43x = 1,064,647.02
5. Step 5: Solve for x
   x = 1,064,647.02/1,084.43
6. Step 6: Final answer
   x = 981.76