Finding the Fourth Proportional to 1,065.16, 1,470.53 and 711.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065.16 : 1,470.53 = 711.57 : x
2. Step 2: Convert to fraction form
   1,065.16/1,470.53 = 711.57/x
3. Step 3: Cross multiply
   1,065.16x = 1,470.53 × 711.57
4. Step 4: Simplify right side
   1,065.16x = 1,046,381.47
5. Step 5: Solve for x
   x = 1,046,381.47/1,065.16
6. Step 6: Final answer
   x = 982.37