Finding the Fourth Proportional to 2,788.83, 4,182.08 and 939.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,788.83 : 4,182.08 = 939.50 : x
2. Step 2: Convert to fraction form
   2,788.83/4,182.08 = 939.50/x
3. Step 3: Cross multiply
   2,788.83x = 4,182.08 × 939.50
4. Step 4: Simplify right side
   2,788.83x = 3,929,038.55
5. Step 5: Solve for x
   x = 3,929,038.55/2,788.83
6. Step 6: Final answer
   x = 1,408.85