Finding the Fourth Proportional to 1,552.79, 2,142.78 and 963.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,552.79 : 2,142.78 = 963.38 : x
2. Step 2: Convert to fraction form
   1,552.79/2,142.78 = 963.38/x
3. Step 3: Cross multiply
   1,552.79x = 2,142.78 × 963.38
4. Step 4: Simplify right side
   1,552.79x = 2,064,311.40
5. Step 5: Solve for x
   x = 2,064,311.40/1,552.79
6. Step 6: Final answer
   x = 1,329.42