Finding the Fourth Proportional to 2,337.14, 3,223.83 and 1,392.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,337.14 : 3,223.83 = 1,392.31 : x
2. Step 2: Convert to fraction form
   2,337.14/3,223.83 = 1,392.31/x
3. Step 3: Cross multiply
   2,337.14x = 3,223.83 × 1,392.31
4. Step 4: Simplify right side
   2,337.14x = 4,488,570.75
5. Step 5: Solve for x
   x = 4,488,570.75/2,337.14
6. Step 6: Final answer
   x = 1,920.54