Finding the Fourth Proportional to 3,890.42, 5,826.48 and 3,383.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,890.42 : 5,826.48 = 3,383.62 : x
2. Step 2: Convert to fraction form
   3,890.42/5,826.48 = 3,383.62/x
3. Step 3: Cross multiply
   3,890.42x = 5,826.48 × 3,383.62
4. Step 4: Simplify right side
   3,890.42x = 19,714,594.26
5. Step 5: Solve for x
   x = 19,714,594.26/3,890.42
6. Step 6: Final answer
   x = 5,067.47