Finding the Fourth Proportional to 1,061.71, 1,593.10 and 710.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.71 : 1,593.10 = 710.55 : x
2. Step 2: Convert to fraction form
   1,061.71/1,593.10 = 710.55/x
3. Step 3: Cross multiply
   1,061.71x = 1,593.10 × 710.55
4. Step 4: Simplify right side
   1,061.71x = 1,131,973.65
5. Step 5: Solve for x
   x = 1,131,973.65/1,061.71
6. Step 6: Final answer
   x = 1,066.18