Finding the Fourth Proportional to 1,084.10, 1,494.60 and 710.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,084.10 : 1,494.60 = 710.49 : x
2. Step 2: Convert to fraction form
   1,084.10/1,494.60 = 710.49/x
3. Step 3: Cross multiply
   1,084.10x = 1,494.60 × 710.49
4. Step 4: Simplify right side
   1,084.10x = 1,061,898.35
5. Step 5: Solve for x
   x = 1,061,898.35/1,084.10
6. Step 6: Final answer
   x = 979.53