Finding the Fourth Proportional to 2,043.42, 2,819.34 and 1,257.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,043.42 : 2,819.34 = 1,257.27 : x
2. Step 2: Convert to fraction form
   2,043.42/2,819.34 = 1,257.27/x
3. Step 3: Cross multiply
   2,043.42x = 2,819.34 × 1,257.27
4. Step 4: Simplify right side
   2,043.42x = 3,544,671.60
5. Step 5: Solve for x
   x = 3,544,671.60/2,043.42
6. Step 6: Final answer
   x = 1,734.68