Finding the Fourth Proportional to 1,061.56, 1,589.58 and 574.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.56 : 1,589.58 = 574.84 : x
2. Step 2: Convert to fraction form
   1,061.56/1,589.58 = 574.84/x
3. Step 3: Cross multiply
   1,061.56x = 1,589.58 × 574.84
4. Step 4: Simplify right side
   1,061.56x = 913,754.17
5. Step 5: Solve for x
   x = 913,754.17/1,061.56
6. Step 6: Final answer
   x = 860.77