Finding the Fourth Proportional to 2,864, 3,952.42 and 2,732.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,864 : 3,952.42 = 2,732.78 : x
2. Step 2: Convert to fraction form
   2,864/3,952.42 = 2,732.78/x
3. Step 3: Cross multiply
   2,864x = 3,952.42 × 2,732.78
4. Step 4: Simplify right side
   2,864x = 10,801,080.66
5. Step 5: Solve for x
   x = 10,801,080.66/2,864
6. Step 6: Final answer
   x = 3,771.33