Finding the Fourth Proportional to 3,198.96, 4,411.71 and 2,078.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,198.96 : 4,411.71 = 2,078.82 : x
2. Step 2: Convert to fraction form
   3,198.96/4,411.71 = 2,078.82/x
3. Step 3: Cross multiply
   3,198.96x = 4,411.71 × 2,078.82
4. Step 4: Simplify right side
   3,198.96x = 9,171,150.98
5. Step 5: Solve for x
   x = 9,171,150.98/3,198.96
6. Step 6: Final answer
   x = 2,866.92