Finding the Fourth Proportional to 2,740.96, 3,800.82 and 2,648.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,740.96 : 3,800.82 = 2,648.60 : x
2. Step 2: Convert to fraction form
   2,740.96/3,800.82 = 2,648.60/x
3. Step 3: Cross multiply
   2,740.96x = 3,800.82 × 2,648.60
4. Step 4: Simplify right side
   2,740.96x = 10,066,851.85
5. Step 5: Solve for x
   x = 10,066,851.85/2,740.96
6. Step 6: Final answer
   x = 3,672.75