Finding the Fourth Proportional to 2,568.96, 3,855.60 and 1,415.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,568.96 : 3,855.60 = 1,415.52 : x
2. Step 2: Convert to fraction form
   2,568.96/3,855.60 = 1,415.52/x
3. Step 3: Cross multiply
   2,568.96x = 3,855.60 × 1,415.52
4. Step 4: Simplify right side
   2,568.96x = 5,457,678.91
5. Step 5: Solve for x
   x = 5,457,678.91/2,568.96
6. Step 6: Final answer
   x = 2,124.47