Finding the Fourth Proportional to 3,404.51, 5,105.82 and 938.73

Step by Step Solution

1. Step 1: Write the proportion equation
   3,404.51 : 5,105.82 = 938.73 : x
2. Step 2: Convert to fraction form
   3,404.51/5,105.82 = 938.73/x
3. Step 3: Cross multiply
   3,404.51x = 5,105.82 × 938.73
4. Step 4: Simplify right side
   3,404.51x = 4,792,986.41
5. Step 5: Solve for x
   x = 4,792,986.41/3,404.51
6. Step 6: Final answer
   x = 1,407.83