Finding the Fourth Proportional to 2,560.48, 3,839.76 and 2,019.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,560.48 : 3,839.76 = 2,019.04 : x
2. Step 2: Convert to fraction form
   2,560.48/3,839.76 = 2,019.04/x
3. Step 3: Cross multiply
   2,560.48x = 3,839.76 × 2,019.04
4. Step 4: Simplify right side
   2,560.48x = 7,752,629.03
5. Step 5: Solve for x
   x = 7,752,629.03/2,560.48
6. Step 6: Final answer
   x = 3,027.80