Finding the Fourth Proportional to 1,061.43, 1,464.78 and 613.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.43 : 1,464.78 = 613.29 : x
2. Step 2: Convert to fraction form
   1,061.43/1,464.78 = 613.29/x
3. Step 3: Cross multiply
   1,061.43x = 1,464.78 × 613.29
4. Step 4: Simplify right side
   1,061.43x = 898,334.93
5. Step 5: Solve for x
   x = 898,334.93/1,061.43
6. Step 6: Final answer
   x = 846.34