Finding the Fourth Proportional to 2,924.78, 4,389.60 and 1,282.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,924.78 : 4,389.60 = 1,282.10 : x
2. Step 2: Convert to fraction form
   2,924.78/4,389.60 = 1,282.10/x
3. Step 3: Cross multiply
   2,924.78x = 4,389.60 × 1,282.10
4. Step 4: Simplify right side
   2,924.78x = 5,627,906.16
5. Step 5: Solve for x
   x = 5,627,906.16/2,924.78
6. Step 6: Final answer
   x = 1,924.22