Finding the Fourth Proportional to 2,401.43, 3,313.86 and 1,339.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,401.43 : 3,313.86 = 1,339.31 : x
2. Step 2: Convert to fraction form
   2,401.43/3,313.86 = 1,339.31/x
3. Step 3: Cross multiply
   2,401.43x = 3,313.86 × 1,339.31
4. Step 4: Simplify right side
   2,401.43x = 4,438,285.84
5. Step 5: Solve for x
   x = 4,438,285.84/2,401.43
6. Step 6: Final answer
   x = 1,848.18