Finding the Fourth Proportional to 2,387.26, 3,579.90 and 2,141.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,387.26 : 3,579.90 = 2,141.25 : x
2. Step 2: Convert to fraction form
   2,387.26/3,579.90 = 2,141.25/x
3. Step 3: Cross multiply
   2,387.26x = 3,579.90 × 2,141.25
4. Step 4: Simplify right side
   2,387.26x = 7,665,460.88
5. Step 5: Solve for x
   x = 7,665,460.88/2,387.26
6. Step 6: Final answer
   x = 3,210.99