Finding the Fourth Proportional to 2,229.73, 3,076.98 and 1,285.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,229.73 : 3,076.98 = 1,285.51 : x
2. Step 2: Convert to fraction form
   2,229.73/3,076.98 = 1,285.51/x
3. Step 3: Cross multiply
   2,229.73x = 3,076.98 × 1,285.51
4. Step 4: Simplify right side
   2,229.73x = 3,955,488.56
5. Step 5: Solve for x
   x = 3,955,488.56/2,229.73
6. Step 6: Final answer
   x = 1,773.98