Finding the Fourth Proportional to 3,591.38, 4,956.71 and 2,078.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,591.38 : 4,956.71 = 2,078.72 : x
2. Step 2: Convert to fraction form
   3,591.38/4,956.71 = 2,078.72/x
3. Step 3: Cross multiply
   3,591.38x = 4,956.71 × 2,078.72
4. Step 4: Simplify right side
   3,591.38x = 10,303,585.83
5. Step 5: Solve for x
   x = 10,303,585.83/3,591.38
6. Step 6: Final answer
   x = 2,868.98