Finding the Fourth Proportional to 2,579.92, 3,870.48 and 848.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,579.92 : 3,870.48 = 848.56 : x
2. Step 2: Convert to fraction form
   2,579.92/3,870.48 = 848.56/x
3. Step 3: Cross multiply
   2,579.92x = 3,870.48 × 848.56
4. Step 4: Simplify right side
   2,579.92x = 3,284,334.51
5. Step 5: Solve for x
   x = 3,284,334.51/2,579.92
6. Step 6: Final answer
   x = 1,273.04