Finding the Fourth Proportional to 2,340.05, 3,229.27 and 1,292.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,340.05 : 3,229.27 = 1,292.12 : x
2. Step 2: Convert to fraction form
   2,340.05/3,229.27 = 1,292.12/x
3. Step 3: Cross multiply
   2,340.05x = 3,229.27 × 1,292.12
4. Step 4: Simplify right side
   2,340.05x = 4,172,604.35
5. Step 5: Solve for x
   x = 4,172,604.35/2,340.05
6. Step 6: Final answer
   x = 1,783.13