Finding the Fourth Proportional to 2,662.74, 3,985.98 and 2,079.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,662.74 : 3,985.98 = 2,079.54 : x
2. Step 2: Convert to fraction form
   2,662.74/3,985.98 = 2,079.54/x
3. Step 3: Cross multiply
   2,662.74x = 3,985.98 × 2,079.54
4. Step 4: Simplify right side
   2,662.74x = 8,289,004.85
5. Step 5: Solve for x
   x = 8,289,004.85/2,662.74
6. Step 6: Final answer
   x = 3,112.96