Finding the Fourth Proportional to 2,789.47, 4,183.15 and 940.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,789.47 : 4,183.15 = 940.09 : x
2. Step 2: Convert to fraction form
   2,789.47/4,183.15 = 940.09/x
3. Step 3: Cross multiply
   2,789.47x = 4,183.15 × 940.09
4. Step 4: Simplify right side
   2,789.47x = 3,932,537.48
5. Step 5: Solve for x
   x = 3,932,537.48/2,789.47
6. Step 6: Final answer
   x = 1,409.78