Finding the Fourth Proportional to 3,921.81, 5,409.72 and 2,327.41

Step by Step Solution

1. Step 1: Write the proportion equation
   3,921.81 : 5,409.72 = 2,327.41 : x
2. Step 2: Convert to fraction form
   3,921.81/5,409.72 = 2,327.41/x
3. Step 3: Cross multiply
   3,921.81x = 5,409.72 × 2,327.41
4. Step 4: Simplify right side
   3,921.81x = 12,590,597.74
5. Step 5: Solve for x
   x = 12,590,597.74/3,921.81
6. Step 6: Final answer
   x = 3,210.41