Finding the Fourth Proportional to 2,227.05, 3,340.12 and 766.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,227.05 : 3,340.12 = 766.32 : x
2. Step 2: Convert to fraction form
   2,227.05/3,340.12 = 766.32/x
3. Step 3: Cross multiply
   2,227.05x = 3,340.12 × 766.32
4. Step 4: Simplify right side
   2,227.05x = 2,559,587.75
5. Step 5: Solve for x
   x = 2,559,587.75/2,227.05
6. Step 6: Final answer
   x = 1,149.32