Finding the Fourth Proportional to 2,627.20, 3,616.32 and 2,627.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,627.20 : 3,616.32 = 2,627.20 : x
2. Step 2: Convert to fraction form
   2,627.20/3,616.32 = 2,627.20/x
3. Step 3: Cross multiply
   2,627.20x = 3,616.32 × 2,627.20
4. Step 4: Simplify right side
   2,627.20x = 9,500,795.90
5. Step 5: Solve for x
   x = 9,500,795.90/2,627.20
6. Step 6: Final answer
   x = 3,616.32