Finding the Fourth Proportional to 1,061.84, 1,591.52 and 574.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.84 : 1,591.52 = 574.04 : x
2. Step 2: Convert to fraction form
   1,061.84/1,591.52 = 574.04/x
3. Step 3: Cross multiply
   1,061.84x = 1,591.52 × 574.04
4. Step 4: Simplify right side
   1,061.84x = 913,585.31
5. Step 5: Solve for x
   x = 913,585.31/1,061.84
6. Step 6: Final answer
   x = 860.38