Finding the Fourth Proportional to 2,583.95, 3,873.61 and 939.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,583.95 : 3,873.61 = 939.33 : x
2. Step 2: Convert to fraction form
   2,583.95/3,873.61 = 939.33/x
3. Step 3: Cross multiply
   2,583.95x = 3,873.61 × 939.33
4. Step 4: Simplify right side
   2,583.95x = 3,638,613.78
5. Step 5: Solve for x
   x = 3,638,613.78/2,583.95
6. Step 6: Final answer
   x = 1,408.16