Finding the Fourth Proportional to 2,568.28, 3,851.60 and 836.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,568.28 : 3,851.60 = 836.52 : x
2. Step 2: Convert to fraction form
   2,568.28/3,851.60 = 836.52/x
3. Step 3: Cross multiply
   2,568.28x = 3,851.60 × 836.52
4. Step 4: Simplify right side
   2,568.28x = 3,221,940.43
5. Step 5: Solve for x
   x = 3,221,940.43/2,568.28
6. Step 6: Final answer
   x = 1,254.51