Finding the Fourth Proportional to 1,061.16, 1,592.28 and 548.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.16 : 1,592.28 = 548.16 : x
2. Step 2: Convert to fraction form
   1,061.16/1,592.28 = 548.16/x
3. Step 3: Cross multiply
   1,061.16x = 1,592.28 × 548.16
4. Step 4: Simplify right side
   1,061.16x = 872,824.20
5. Step 5: Solve for x
   x = 872,824.20/1,061.16
6. Step 6: Final answer
   x = 822.52