Finding the Fourth Proportional to 3,830.72, 5,285.42 and 2,338.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,830.72 : 5,285.42 = 2,338.54 : x
2. Step 2: Convert to fraction form
   3,830.72/5,285.42 = 2,338.54/x
3. Step 3: Cross multiply
   3,830.72x = 5,285.42 × 2,338.54
4. Step 4: Simplify right side
   3,830.72x = 12,360,166.09
5. Step 5: Solve for x
   x = 12,360,166.09/3,830.72
6. Step 6: Final answer
   x = 3,226.59