Finding the Fourth Proportional to 2,789.40, 4,184.54 and 940.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,789.40 : 4,184.54 = 940.38 : x
2. Step 2: Convert to fraction form
   2,789.40/4,184.54 = 940.38/x
3. Step 3: Cross multiply
   2,789.40x = 4,184.54 × 940.38
4. Step 4: Simplify right side
   2,789.40x = 3,935,057.73
5. Step 5: Solve for x
   x = 3,935,057.73/2,789.40
6. Step 6: Final answer
   x = 1,410.72