Finding the Fourth Proportional to 3,826.18, 5,737.92 and 1,228.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,826.18 : 5,737.92 = 1,228.42 : x
2. Step 2: Convert to fraction form
   3,826.18/5,737.92 = 1,228.42/x
3. Step 3: Cross multiply
   3,826.18x = 5,737.92 × 1,228.42
4. Step 4: Simplify right side
   3,826.18x = 7,048,575.69
5. Step 5: Solve for x
   x = 7,048,575.69/3,826.18
6. Step 6: Final answer
   x = 1,842.20