Finding the Fourth Proportional to 3,278.27, 4,498.56 and 2,981.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,278.27 : 4,498.56 = 2,981.27 : x
2. Step 2: Convert to fraction form
   3,278.27/4,498.56 = 2,981.27/x
3. Step 3: Cross multiply
   3,278.27x = 4,498.56 × 2,981.27
4. Step 4: Simplify right side
   3,278.27x = 13,411,399.48
5. Step 5: Solve for x
   x = 13,411,399.48/3,278.27
6. Step 6: Final answer
   x = 4,091.01