Finding the Fourth Proportional to 2,076.93, 2,866.23 and 1,280.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.93 : 2,866.23 = 1,280.09 : x
2. Step 2: Convert to fraction form
   2,076.93/2,866.23 = 1,280.09/x
3. Step 3: Cross multiply
   2,076.93x = 2,866.23 × 1,280.09
4. Step 4: Simplify right side
   2,076.93x = 3,669,018.03
5. Step 5: Solve for x
   x = 3,669,018.03/2,076.93
6. Step 6: Final answer
   x = 1,766.56