Finding the Fourth Proportional to 1,061.02, 1,464.29 and 618.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.02 : 1,464.29 = 618.89 : x
2. Step 2: Convert to fraction form
   1,061.02/1,464.29 = 618.89/x
3. Step 3: Cross multiply
   1,061.02x = 1,464.29 × 618.89
4. Step 4: Simplify right side
   1,061.02x = 906,234.44
5. Step 5: Solve for x
   x = 906,234.44/1,061.02
6. Step 6: Final answer
   x = 854.12