Finding the Fourth Proportional to 2,221.46, 3,065.54 and 1,226.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,221.46 : 3,065.54 = 1,226.71 : x
2. Step 2: Convert to fraction form
   2,221.46/3,065.54 = 1,226.71/x
3. Step 3: Cross multiply
   2,221.46x = 3,065.54 × 1,226.71
4. Step 4: Simplify right side
   2,221.46x = 3,760,528.57
5. Step 5: Solve for x
   x = 3,760,528.57/2,221.46
6. Step 6: Final answer
   x = 1,692.82