Finding the Fourth Proportional to 4,189.31, 5,781.25 and 2,326.31

Step by Step Solution

1. Step 1: Write the proportion equation
   4,189.31 : 5,781.25 = 2,326.31 : x
2. Step 2: Convert to fraction form
   4,189.31/5,781.25 = 2,326.31/x
3. Step 3: Cross multiply
   4,189.31x = 5,781.25 × 2,326.31
4. Step 4: Simplify right side
   4,189.31x = 13,448,979.69
5. Step 5: Solve for x
   x = 13,448,979.69/4,189.31
6. Step 6: Final answer
   x = 3,210.31