Finding the Fourth Proportional to 3,411.72, 5,106.78 and 2,793.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,411.72 : 5,106.78 = 2,793.96 : x
2. Step 2: Convert to fraction form
   3,411.72/5,106.78 = 2,793.96/x
3. Step 3: Cross multiply
   3,411.72x = 5,106.78 × 2,793.96
4. Step 4: Simplify right side
   3,411.72x = 14,268,139.05
5. Step 5: Solve for x
   x = 14,268,139.05/3,411.72
6. Step 6: Final answer
   x = 4,182.10