Finding the Fourth Proportional to 3,449.79, 4,760.78 and 2,123.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,449.79 : 4,760.78 = 2,123.42 : x
2. Step 2: Convert to fraction form
   3,449.79/4,760.78 = 2,123.42/x
3. Step 3: Cross multiply
   3,449.79x = 4,760.78 × 2,123.42
4. Step 4: Simplify right side
   3,449.79x = 10,109,101.05
5. Step 5: Solve for x
   x = 10,109,101.05/3,449.79
6. Step 6: Final answer
   x = 2,930.35