Finding the Fourth Proportional to 1,061.02, 1,463.70 and 687.97

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.02 : 1,463.70 = 687.97 : x
2. Step 2: Convert to fraction form
   1,061.02/1,463.70 = 687.97/x
3. Step 3: Cross multiply
   1,061.02x = 1,463.70 × 687.97
4. Step 4: Simplify right side
   1,061.02x = 1,006,981.69
5. Step 5: Solve for x
   x = 1,006,981.69/1,061.02
6. Step 6: Final answer
   x = 949.07