Finding the Fourth Proportional to 1,780.44, 2,456.31 and 1,034.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,780.44 : 2,456.31 = 1,034.27 : x
2. Step 2: Convert to fraction form
   1,780.44/2,456.31 = 1,034.27/x
3. Step 3: Cross multiply
   1,780.44x = 2,456.31 × 1,034.27
4. Step 4: Simplify right side
   1,780.44x = 2,540,487.74
5. Step 5: Solve for x
   x = 2,540,487.74/1,780.44
6. Step 6: Final answer
   x = 1,426.89