Finding the Fourth Proportional to 1,061.02, 1,463.78 and 662.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.02 : 1,463.78 = 662.40 : x
2. Step 2: Convert to fraction form
   1,061.02/1,463.78 = 662.40/x
3. Step 3: Cross multiply
   1,061.02x = 1,463.78 × 662.40
4. Step 4: Simplify right side
   1,061.02x = 969,607.87
5. Step 5: Solve for x
   x = 969,607.87/1,061.02
6. Step 6: Final answer
   x = 913.85