Finding the Fourth Proportional to 1,065.35, 1,470.15 and 710.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065.35 : 1,470.15 = 710.88 : x
2. Step 2: Convert to fraction form
   1,065.35/1,470.15 = 710.88/x
3. Step 3: Cross multiply
   1,065.35x = 1,470.15 × 710.88
4. Step 4: Simplify right side
   1,065.35x = 1,045,094.72
5. Step 5: Solve for x
   x = 1,045,094.72/1,065.35
6. Step 6: Final answer
   x = 980.98