Finding the Fourth Proportional to 2,280.06, 3,146.52 and 1,285.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,280.06 : 3,146.52 = 1,285.26 : x
2. Step 2: Convert to fraction form
   2,280.06/3,146.52 = 1,285.26/x
3. Step 3: Cross multiply
   2,280.06x = 3,146.52 × 1,285.26
4. Step 4: Simplify right side
   2,280.06x = 4,044,096.30
5. Step 5: Solve for x
   x = 4,044,096.30/2,280.06
6. Step 6: Final answer
   x = 1,773.68