Finding the Fourth Proportional to 2,013.27, 2,778.93 and 1,227.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,013.27 : 2,778.93 = 1,227.30 : x
2. Step 2: Convert to fraction form
   2,013.27/2,778.93 = 1,227.30/x
3. Step 3: Cross multiply
   2,013.27x = 2,778.93 × 1,227.30
4. Step 4: Simplify right side
   2,013.27x = 3,410,580.79
5. Step 5: Solve for x
   x = 3,410,580.79/2,013.27
6. Step 6: Final answer
   x = 1,694.05