Finding the Fourth Proportional to 3,839.76, 5,759.18 and 2,259.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,839.76 : 5,759.18 = 2,259.43 : x
2. Step 2: Convert to fraction form
   3,839.76/5,759.18 = 2,259.43/x
3. Step 3: Cross multiply
   3,839.76x = 5,759.18 × 2,259.43
4. Step 4: Simplify right side
   3,839.76x = 13,012,435.27
5. Step 5: Solve for x
   x = 13,012,435.27/3,839.76
6. Step 6: Final answer
   x = 3,388.87