Finding the Fourth Proportional to 3,403.33, 4,694.42 and 2,143.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,403.33 : 4,694.42 = 2,143.31 : x
2. Step 2: Convert to fraction form
   3,403.33/4,694.42 = 2,143.31/x
3. Step 3: Cross multiply
   3,403.33x = 4,694.42 × 2,143.31
4. Step 4: Simplify right side
   3,403.33x = 10,061,605.62
5. Step 5: Solve for x
   x = 10,061,605.62/3,403.33
6. Step 6: Final answer
   x = 2,956.40