Finding the Fourth Proportional to 3,849.27, 5,776.43 and 2,389.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,849.27 : 5,776.43 = 2,389.43 : x
2. Step 2: Convert to fraction form
   3,849.27/5,776.43 = 2,389.43/x
3. Step 3: Cross multiply
   3,849.27x = 5,776.43 × 2,389.43
4. Step 4: Simplify right side
   3,849.27x = 13,802,334.31
5. Step 5: Solve for x
   x = 13,802,334.31/3,849.27
6. Step 6: Final answer
   x = 3,585.70