Finding the Fourth Proportional to 2,568.51, 3,849.57 and 1,335.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,568.51 : 3,849.57 = 1,335.20 : x
2. Step 2: Convert to fraction form
   2,568.51/3,849.57 = 1,335.20/x
3. Step 3: Cross multiply
   2,568.51x = 3,849.57 × 1,335.20
4. Step 4: Simplify right side
   2,568.51x = 5,139,939.58
5. Step 5: Solve for x
   x = 5,139,939.58/2,568.51
6. Step 6: Final answer
   x = 2,001.13