Finding the Fourth Proportional to 2,928.97, 4,392.77 and 848.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,928.97 : 4,392.77 = 848.42 : x
2. Step 2: Convert to fraction form
   2,928.97/4,392.77 = 848.42/x
3. Step 3: Cross multiply
   2,928.97x = 4,392.77 × 848.42
4. Step 4: Simplify right side
   2,928.97x = 3,726,887.72
5. Step 5: Solve for x
   x = 3,726,887.72/2,928.97
6. Step 6: Final answer
   x = 1,272.42