Finding the Fourth Proportional to 3,648.05, 5,472.18 and 1,426.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,648.05 : 5,472.18 = 1,426.79 : x
2. Step 2: Convert to fraction form
   3,648.05/5,472.18 = 1,426.79/x
3. Step 3: Cross multiply
   3,648.05x = 5,472.18 × 1,426.79
4. Step 4: Simplify right side
   3,648.05x = 7,807,665.38
5. Step 5: Solve for x
   x = 7,807,665.38/3,648.05
6. Step 6: Final answer
   x = 2,140.23