Finding the Fourth Proportional to 2,025.05, 2,794.16 and 1,280.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,025.05 : 2,794.16 = 1,280.03 : x
2. Step 2: Convert to fraction form
   2,025.05/2,794.16 = 1,280.03/x
3. Step 3: Cross multiply
   2,025.05x = 2,794.16 × 1,280.03
4. Step 4: Simplify right side
   2,025.05x = 3,576,597.85
5. Step 5: Solve for x
   x = 3,576,597.85/2,025.05
6. Step 6: Final answer
   x = 1,766.18