Finding the Fourth Proportional to 2,842.88, 3,923.57 and 2,718.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,842.88 : 3,923.57 = 2,718.34 : x
2. Step 2: Convert to fraction form
   2,842.88/3,923.57 = 2,718.34/x
3. Step 3: Cross multiply
   2,842.88x = 3,923.57 × 2,718.34
4. Step 4: Simplify right side
   2,842.88x = 10,665,594.26
5. Step 5: Solve for x
   x = 10,665,594.26/2,842.88
6. Step 6: Final answer
   x = 3,751.69