Finding the Fourth Proportional to 1,394.22, 1,923.89 and 804.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,394.22 : 1,923.89 = 804.95 : x
2. Step 2: Convert to fraction form
   1,394.22/1,923.89 = 804.95/x
3. Step 3: Cross multiply
   1,394.22x = 1,923.89 × 804.95
4. Step 4: Simplify right side
   1,394.22x = 1,548,621.61
5. Step 5: Solve for x
   x = 1,548,621.61/1,394.22
6. Step 6: Final answer
   x = 1,110.74