Finding the Fourth Proportional to 3,143.25, 4,337.69 and 2,398.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,143.25 : 4,337.69 = 2,398.05 : x
2. Step 2: Convert to fraction form
   3,143.25/4,337.69 = 2,398.05/x
3. Step 3: Cross multiply
   3,143.25x = 4,337.69 × 2,398.05
4. Step 4: Simplify right side
   3,143.25x = 10,401,985.51
5. Step 5: Solve for x
   x = 10,401,985.51/3,143.25
6. Step 6: Final answer
   x = 3,309.31