Finding the Fourth Proportional to 3,131.27, 4,340.92 and 2,964.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,131.27 : 4,340.92 = 2,964.82 : x
2. Step 2: Convert to fraction form
   3,131.27/4,340.92 = 2,964.82/x
3. Step 3: Cross multiply
   3,131.27x = 4,340.92 × 2,964.82
4. Step 4: Simplify right side
   3,131.27x = 12,870,024.73
5. Step 5: Solve for x
   x = 12,870,024.73/3,131.27
6. Step 6: Final answer
   x = 4,110.16