Finding the Fourth Proportional to 2,974.78, 4,104.81 and 1,648.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,974.78 : 4,104.81 = 1,648.42 : x
2. Step 2: Convert to fraction form
   2,974.78/4,104.81 = 1,648.42/x
3. Step 3: Cross multiply
   2,974.78x = 4,104.81 × 1,648.42
4. Step 4: Simplify right side
   2,974.78x = 6,766,450.90
5. Step 5: Solve for x
   x = 6,766,450.90/2,974.78
6. Step 6: Final answer
   x = 2,274.61