Finding the Fourth Proportional to 3,849.30, 5,776.68 and 2,389.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,849.30 : 5,776.68 = 2,389.48 : x
2. Step 2: Convert to fraction form
   3,849.30/5,776.68 = 2,389.48/x
3. Step 3: Cross multiply
   3,849.30x = 5,776.68 × 2,389.48
4. Step 4: Simplify right side
   3,849.30x = 13,803,261.33
5. Step 5: Solve for x
   x = 13,803,261.33/3,849.30
6. Step 6: Final answer
   x = 3,585.91