Finding the Fourth Proportional to 3,809.31, 5,256 and 2,411.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,809.31 : 5,256 = 2,411.25 : x
2. Step 2: Convert to fraction form
   3,809.31/5,256 = 2,411.25/x
3. Step 3: Cross multiply
   3,809.31x = 5,256 × 2,411.25
4. Step 4: Simplify right side
   3,809.31x = 12,673,530
5. Step 5: Solve for x
   x = 12,673,530/3,809.31
6. Step 6: Final answer
   x = 3,326.99