Finding the Fourth Proportional to 1,061.82, 1,593.72 and 542.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.82 : 1,593.72 = 542.19 : x
2. Step 2: Convert to fraction form
   1,061.82/1,593.72 = 542.19/x
3. Step 3: Cross multiply
   1,061.82x = 1,593.72 × 542.19
4. Step 4: Simplify right side
   1,061.82x = 864,099.05
5. Step 5: Solve for x
   x = 864,099.05/1,061.82
6. Step 6: Final answer
   x = 813.79