Finding the Fourth Proportional to 3,100.78, 4,648.94 and 1,456.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,100.78 : 4,648.94 = 1,456.42 : x
2. Step 2: Convert to fraction form
   3,100.78/4,648.94 = 1,456.42/x
3. Step 3: Cross multiply
   3,100.78x = 4,648.94 × 1,456.42
4. Step 4: Simplify right side
   3,100.78x = 6,770,809.19
5. Step 5: Solve for x
   x = 6,770,809.19/3,100.78
6. Step 6: Final answer
   x = 2,183.58