Finding the Fourth Proportional to 1,393.10, 1,922.38 and 833.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,393.10 : 1,922.38 = 833.82 : x
2. Step 2: Convert to fraction form
   1,393.10/1,922.38 = 833.82/x
3. Step 3: Cross multiply
   1,393.10x = 1,922.38 × 833.82
4. Step 4: Simplify right side
   1,393.10x = 1,602,918.89
5. Step 5: Solve for x
   x = 1,602,918.89/1,393.10
6. Step 6: Final answer
   x = 1,150.61