Finding the Fourth Proportional to 1,061.37, 1,592.66 and 412.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.37 : 1,592.66 = 412.17 : x
2. Step 2: Convert to fraction form
   1,061.37/1,592.66 = 412.17/x
3. Step 3: Cross multiply
   1,061.37x = 1,592.66 × 412.17
4. Step 4: Simplify right side
   1,061.37x = 656,444.61
5. Step 5: Solve for x
   x = 656,444.61/1,061.37
6. Step 6: Final answer
   x = 618.49