Finding the Fourth Proportional to 3,627.36, 5,433.72 and 2,391.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,627.36 : 5,433.72 = 2,391.72 : x
2. Step 2: Convert to fraction form
   3,627.36/5,433.72 = 2,391.72/x
3. Step 3: Cross multiply
   3,627.36x = 5,433.72 × 2,391.72
4. Step 4: Simplify right side
   3,627.36x = 12,995,936.80
5. Step 5: Solve for x
   x = 12,995,936.80/3,627.36
6. Step 6: Final answer
   x = 3,582.75