Finding the Fourth Proportional to 1,393.67, 1,922.82 and 804.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,393.67 : 1,922.82 = 804.08 : x
2. Step 2: Convert to fraction form
   1,393.67/1,922.82 = 804.08/x
3. Step 3: Cross multiply
   1,393.67x = 1,922.82 × 804.08
4. Step 4: Simplify right side
   1,393.67x = 1,546,101.11
5. Step 5: Solve for x
   x = 1,546,101.11/1,393.67
6. Step 6: Final answer
   x = 1,109.37