Finding the Fourth Proportional to 2,404.72, 3,605.48 and 865.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,404.72 : 3,605.48 = 865.52 : x
2. Step 2: Convert to fraction form
   2,404.72/3,605.48 = 865.52/x
3. Step 3: Cross multiply
   2,404.72x = 3,605.48 × 865.52
4. Step 4: Simplify right side
   2,404.72x = 3,120,615.05
5. Step 5: Solve for x
   x = 3,120,615.05/2,404.72
6. Step 6: Final answer
   x = 1,297.70