Finding the Fourth Proportional to 3,921.62, 5,411.86 and 2,243.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,921.62 : 5,411.86 = 2,243.10 : x
2. Step 2: Convert to fraction form
   3,921.62/5,411.86 = 2,243.10/x
3. Step 3: Cross multiply
   3,921.62x = 5,411.86 × 2,243.10
4. Step 4: Simplify right side
   3,921.62x = 12,139,337.56
5. Step 5: Solve for x
   x = 12,139,337.56/3,921.62
6. Step 6: Final answer
   x = 3,095.49