Finding the Fourth Proportional to 2,860.74, 3,967.88 and 2,744.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,860.74 : 3,967.88 = 2,744.10 : x
2. Step 2: Convert to fraction form
   2,860.74/3,967.88 = 2,744.10/x
3. Step 3: Cross multiply
   2,860.74x = 3,967.88 × 2,744.10
4. Step 4: Simplify right side
   2,860.74x = 10,888,245.79
5. Step 5: Solve for x
   x = 10,888,245.79/2,860.74
6. Step 6: Final answer
   x = 3,806.09