Finding the Fourth Proportional to 2,622.78, 3,923.37 and 2,401.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.78 : 3,923.37 = 2,401.74 : x
2. Step 2: Convert to fraction form
   2,622.78/3,923.37 = 2,401.74/x
3. Step 3: Cross multiply
   2,622.78x = 3,923.37 × 2,401.74
4. Step 4: Simplify right side
   2,622.78x = 9,422,914.66
5. Step 5: Solve for x
   x = 9,422,914.66/2,622.78
6. Step 6: Final answer
   x = 3,592.72