Finding the Fourth Proportional to 2,238.34, 3,356.83 and 939.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.34 : 3,356.83 = 939.52 : x
2. Step 2: Convert to fraction form
   2,238.34/3,356.83 = 939.52/x
3. Step 3: Cross multiply
   2,238.34x = 3,356.83 × 939.52
4. Step 4: Simplify right side
   2,238.34x = 3,153,787.44
5. Step 5: Solve for x
   x = 3,153,787.44/2,238.34
6. Step 6: Final answer
   x = 1,408.99