Finding the Fourth Proportional to 2,636.65, 3,954.72 and 1,076.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.65 : 3,954.72 = 1,076.71 : x
2. Step 2: Convert to fraction form
   2,636.65/3,954.72 = 1,076.71/x
3. Step 3: Cross multiply
   2,636.65x = 3,954.72 × 1,076.71
4. Step 4: Simplify right side
   2,636.65x = 4,258,061.41
5. Step 5: Solve for x
   x = 4,258,061.41/2,636.65
6. Step 6: Final answer
   x = 1,614.95