Finding the Fourth Proportional to 1,394.38, 1,924.34 and 804.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,394.38 : 1,924.34 = 804.96 : x
2. Step 2: Convert to fraction form
   1,394.38/1,924.34 = 804.96/x
3. Step 3: Cross multiply
   1,394.38x = 1,924.34 × 804.96
4. Step 4: Simplify right side
   1,394.38x = 1,549,016.73
5. Step 5: Solve for x
   x = 1,549,016.73/1,394.38
6. Step 6: Final answer
   x = 1,110.90