Finding the Fourth Proportional to 2,615.32, 3,609.30 and 1,567.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,615.32 : 3,609.30 = 1,567.72 : x
2. Step 2: Convert to fraction form
   2,615.32/3,609.30 = 1,567.72/x
3. Step 3: Cross multiply
   2,615.32x = 3,609.30 × 1,567.72
4. Step 4: Simplify right side
   2,615.32x = 5,658,371.80
5. Step 5: Solve for x
   x = 5,658,371.80/2,615.32
6. Step 6: Final answer
   x = 2,163.55