Finding the Fourth Proportional to 3,468.78, 4,785.42 and 2,123.33

Step by Step Solution

1. Step 1: Write the proportion equation
   3,468.78 : 4,785.42 = 2,123.33 : x
2. Step 2: Convert to fraction form
   3,468.78/4,785.42 = 2,123.33/x
3. Step 3: Cross multiply
   3,468.78x = 4,785.42 × 2,123.33
4. Step 4: Simplify right side
   3,468.78x = 10,161,001.92
5. Step 5: Solve for x
   x = 10,161,001.92/3,468.78
6. Step 6: Final answer
   x = 2,929.27