Finding the Fourth Proportional to 3,963.76, 5,956.41 and 2,116.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,963.76 : 5,956.41 = 2,116.18 : x
2. Step 2: Convert to fraction form
   3,963.76/5,956.41 = 2,116.18/x
3. Step 3: Cross multiply
   3,963.76x = 5,956.41 × 2,116.18
4. Step 4: Simplify right side
   3,963.76x = 12,604,835.71
5. Step 5: Solve for x
   x = 12,604,835.71/3,963.76
6. Step 6: Final answer
   x = 3,180.02