Finding the Fourth Proportional to 3,155.16, 4,732.72 and 963.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,155.16 : 4,732.72 = 963.88 : x
2. Step 2: Convert to fraction form
   3,155.16/4,732.72 = 963.88/x
3. Step 3: Cross multiply
   3,155.16x = 4,732.72 × 963.88
4. Step 4: Simplify right side
   3,155.16x = 4,561,774.15
5. Step 5: Solve for x
   x = 4,561,774.15/3,155.16
6. Step 6: Final answer
   x = 1,445.81