Finding the Fourth Proportional to 3,401.92, 5,092.27 and 2,619.90

Step by Step Solution

1. Step 1: Write the proportion equation
   3,401.92 : 5,092.27 = 2,619.90 : x
2. Step 2: Convert to fraction form
   3,401.92/5,092.27 = 2,619.90/x
3. Step 3: Cross multiply
   3,401.92x = 5,092.27 × 2,619.90
4. Step 4: Simplify right side
   3,401.92x = 13,341,238.17
5. Step 5: Solve for x
   x = 13,341,238.17/3,401.92
6. Step 6: Final answer
   x = 3,921.68