Finding the Fourth Proportional to 3,921.67, 5,411.50 and 2,349.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,921.67 : 5,411.50 = 2,349.55 : x
2. Step 2: Convert to fraction form
   3,921.67/5,411.50 = 2,349.55/x
3. Step 3: Cross multiply
   3,921.67x = 5,411.50 × 2,349.55
4. Step 4: Simplify right side
   3,921.67x = 12,714,589.83
5. Step 5: Solve for x
   x = 12,714,589.83/3,921.67
6. Step 6: Final answer
   x = 3,242.14