Finding the Fourth Proportional to 2,439.21, 3,661.89 and 2,033.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,439.21 : 3,661.89 = 2,033.31 : x
2. Step 2: Convert to fraction form
   2,439.21/3,661.89 = 2,033.31/x
3. Step 3: Cross multiply
   2,439.21x = 3,661.89 × 2,033.31
4. Step 4: Simplify right side
   2,439.21x = 7,445,757.56
5. Step 5: Solve for x
   x = 7,445,757.56/2,439.21
6. Step 6: Final answer
   x = 3,052.53