Finding the Fourth Proportional to 3,933.72, 5,427.81 and 2,340.90

Step by Step Solution

1. Step 1: Write the proportion equation
   3,933.72 : 5,427.81 = 2,340.90 : x
2. Step 2: Convert to fraction form
   3,933.72/5,427.81 = 2,340.90/x
3. Step 3: Cross multiply
   3,933.72x = 5,427.81 × 2,340.90
4. Step 4: Simplify right side
   3,933.72x = 12,705,960.43
5. Step 5: Solve for x
   x = 12,705,960.43/3,933.72
6. Step 6: Final answer
   x = 3,230.01