Finding the Fourth Proportional to 3,123.97, 4,684.58 and 1,662.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.97 : 4,684.58 = 1,662.78 : x
2. Step 2: Convert to fraction form
   3,123.97/4,684.58 = 1,662.78/x
3. Step 3: Cross multiply
   3,123.97x = 4,684.58 × 1,662.78
4. Step 4: Simplify right side
   3,123.97x = 7,789,425.93
5. Step 5: Solve for x
   x = 7,789,425.93/3,123.97
6. Step 6: Final answer
   x = 2,493.44