Finding the Fourth Proportional to 1,392.85, 1,922.04 and 833.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,392.85 : 1,922.04 = 833.33 : x
2. Step 2: Convert to fraction form
   1,392.85/1,922.04 = 833.33/x
3. Step 3: Cross multiply
   1,392.85x = 1,922.04 × 833.33
4. Step 4: Simplify right side
   1,392.85x = 1,601,698.40
5. Step 5: Solve for x
   x = 1,601,698.40/1,392.85
6. Step 6: Final answer
   x = 1,149.95