Finding the Fourth Proportional to 1,061.46, 1,590.89 and 541.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.46 : 1,590.89 = 541.62 : x
2. Step 2: Convert to fraction form
   1,061.46/1,590.89 = 541.62/x
3. Step 3: Cross multiply
   1,061.46x = 1,590.89 × 541.62
4. Step 4: Simplify right side
   1,061.46x = 861,655.13
5. Step 5: Solve for x
   x = 861,655.13/1,061.46
6. Step 6: Final answer
   x = 811.76