Finding the Fourth Proportional to 3,155.98, 4,733.86 and 964.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,155.98 : 4,733.86 = 964.72 : x
2. Step 2: Convert to fraction form
   3,155.98/4,733.86 = 964.72/x
3. Step 3: Cross multiply
   3,155.98x = 4,733.86 × 964.72
4. Step 4: Simplify right side
   3,155.98x = 4,566,849.42
5. Step 5: Solve for x
   x = 4,566,849.42/3,155.98
6. Step 6: Final answer
   x = 1,447.05