Finding the Fourth Proportional to 2,627.43, 3,938.13 and 960.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,627.43 : 3,938.13 = 960.81 : x
2. Step 2: Convert to fraction form
   2,627.43/3,938.13 = 960.81/x
3. Step 3: Cross multiply
   2,627.43x = 3,938.13 × 960.81
4. Step 4: Simplify right side
   2,627.43x = 3,783,794.69
5. Step 5: Solve for x
   x = 3,783,794.69/2,627.43
6. Step 6: Final answer
   x = 1,440.11