Finding the Fourth Proportional to 2,123.43, 3,168.10 and 1,889.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.43 : 3,168.10 = 1,889.54 : x
2. Step 2: Convert to fraction form
   2,123.43/3,168.10 = 1,889.54/x
3. Step 3: Cross multiply
   2,123.43x = 3,168.10 × 1,889.54
4. Step 4: Simplify right side
   2,123.43x = 5,986,251.67
5. Step 5: Solve for x
   x = 5,986,251.67/2,123.43
6. Step 6: Final answer
   x = 2,819.14