Finding the Fourth Proportional to 2,852.64, 3,928.77 and 2,648.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,852.64 : 3,928.77 = 2,648.52 : x
2. Step 2: Convert to fraction form
   2,852.64/3,928.77 = 2,648.52/x
3. Step 3: Cross multiply
   2,852.64x = 3,928.77 × 2,648.52
4. Step 4: Simplify right side
   2,852.64x = 10,405,425.92
5. Step 5: Solve for x
   x = 10,405,425.92/2,852.64
6. Step 6: Final answer
   x = 3,647.65