Finding the Fourth Proportional to 2,227.37, 3,340.83 and 766.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,227.37 : 3,340.83 = 766.63 : x
2. Step 2: Convert to fraction form
   2,227.37/3,340.83 = 766.63/x
3. Step 3: Cross multiply
   2,227.37x = 3,340.83 × 766.63
4. Step 4: Simplify right side
   2,227.37x = 2,561,180.50
5. Step 5: Solve for x
   x = 2,561,180.50/2,227.37
6. Step 6: Final answer
   x = 1,149.87