Finding the Fourth Proportional to 2,507.78, 3,759.62 and 1,048.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,507.78 : 3,759.62 = 1,048.02 : x
2. Step 2: Convert to fraction form
   2,507.78/3,759.62 = 1,048.02/x
3. Step 3: Cross multiply
   2,507.78x = 3,759.62 × 1,048.02
4. Step 4: Simplify right side
   2,507.78x = 3,940,151.71
5. Step 5: Solve for x
   x = 3,940,151.71/2,507.78
6. Step 6: Final answer
   x = 1,571.17