Finding the Fourth Proportional to 2,627.48, 3,944.32 and 2,615.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,627.48 : 3,944.32 = 2,615.60 : x
2. Step 2: Convert to fraction form
   2,627.48/3,944.32 = 2,615.60/x
3. Step 3: Cross multiply
   2,627.48x = 3,944.32 × 2,615.60
4. Step 4: Simplify right side
   2,627.48x = 10,316,763.39
5. Step 5: Solve for x
   x = 10,316,763.39/2,627.48
6. Step 6: Final answer
   x = 3,926.49