Finding the Fourth Proportional to 3,963.60, 5,981.04 and 3,818.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,963.60 : 5,981.04 = 3,818.88 : x
2. Step 2: Convert to fraction form
   3,963.60/5,981.04 = 3,818.88/x
3. Step 3: Cross multiply
   3,963.60x = 5,981.04 × 3,818.88
4. Step 4: Simplify right side
   3,963.60x = 22,840,874.04
5. Step 5: Solve for x
   x = 22,840,874.04/3,963.60
6. Step 6: Final answer
   x = 5,762.66