Finding the Fourth Proportional to 2,572.22, 3,847.20 and 1,515.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,572.22 : 3,847.20 = 1,515.52 : x
2. Step 2: Convert to fraction form
   2,572.22/3,847.20 = 1,515.52/x
3. Step 3: Cross multiply
   2,572.22x = 3,847.20 × 1,515.52
4. Step 4: Simplify right side
   2,572.22x = 5,830,508.54
5. Step 5: Solve for x
   x = 5,830,508.54/2,572.22
6. Step 6: Final answer
   x = 2,266.72