Finding the Fourth Proportional to 2,568.81, 3,851.60 and 1,415.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,568.81 : 3,851.60 = 1,415.37 : x
2. Step 2: Convert to fraction form
   2,568.81/3,851.60 = 1,415.37/x
3. Step 3: Cross multiply
   2,568.81x = 3,851.60 × 1,415.37
4. Step 4: Simplify right side
   2,568.81x = 5,451,432.02
5. Step 5: Solve for x
   x = 5,451,432.02/2,568.81
6. Step 6: Final answer
   x = 2,122.16