Finding the Fourth Proportional to 2,648.88, 3,973.55 and 1,088.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.88 : 3,973.55 = 1,088.15 : x
2. Step 2: Convert to fraction form
   2,648.88/3,973.55 = 1,088.15/x
3. Step 3: Cross multiply
   2,648.88x = 3,973.55 × 1,088.15
4. Step 4: Simplify right side
   2,648.88x = 4,323,793.12
5. Step 5: Solve for x
   x = 4,323,793.12/2,648.88
6. Step 6: Final answer
   x = 1,632.31