Finding the Fourth Proportional to 3,577.28, 4,935.72 and 2,738.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,577.28 : 4,935.72 = 2,738.72 : x
2. Step 2: Convert to fraction form
   3,577.28/4,935.72 = 2,738.72/x
3. Step 3: Cross multiply
   3,577.28x = 4,935.72 × 2,738.72
4. Step 4: Simplify right side
   3,577.28x = 13,517,555.08
5. Step 5: Solve for x
   x = 13,517,555.08/3,577.28
6. Step 6: Final answer
   x = 3,778.72