Finding the Fourth Proportional to 2,568.21, 3,544.20 and 1,520.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,568.21 : 3,544.20 = 1,520.88 : x
2. Step 2: Convert to fraction form
   2,568.21/3,544.20 = 1,520.88/x
3. Step 3: Cross multiply
   2,568.21x = 3,544.20 × 1,520.88
4. Step 4: Simplify right side
   2,568.21x = 5,390,302.90
5. Step 5: Solve for x
   x = 5,390,302.90/2,568.21
6. Step 6: Final answer
   x = 2,098.86