Finding the Fourth Proportional to 1,061.12, 1,592.31 and 574.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.12 : 1,592.31 = 574.16 : x
2. Step 2: Convert to fraction form
   1,061.12/1,592.31 = 574.16/x
3. Step 3: Cross multiply
   1,061.12x = 1,592.31 × 574.16
4. Step 4: Simplify right side
   1,061.12x = 914,240.71
5. Step 5: Solve for x
   x = 914,240.71/1,061.12
6. Step 6: Final answer
   x = 861.58