Finding the Fourth Proportional to 1,061.12, 1,589.95 and 540.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.12 : 1,589.95 = 540.41 : x
2. Step 2: Convert to fraction form
   1,061.12/1,589.95 = 540.41/x
3. Step 3: Cross multiply
   1,061.12x = 1,589.95 × 540.41
4. Step 4: Simplify right side
   1,061.12x = 859,224.88
5. Step 5: Solve for x
   x = 859,224.88/1,061.12
6. Step 6: Final answer
   x = 809.73