Finding the Fourth Proportional to 2,744.80, 4,114.76 and 1,285.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,744.80 : 4,114.76 = 1,285.72 : x
2. Step 2: Convert to fraction form
   2,744.80/4,114.76 = 1,285.72/x
3. Step 3: Cross multiply
   2,744.80x = 4,114.76 × 1,285.72
4. Step 4: Simplify right side
   2,744.80x = 5,290,429.23
5. Step 5: Solve for x
   x = 5,290,429.23/2,744.80
6. Step 6: Final answer
   x = 1,927.44