Finding the Fourth Proportional to 1,394.16, 1,923.93 and 804.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,394.16 : 1,923.93 = 804.81 : x
2. Step 2: Convert to fraction form
   1,394.16/1,923.93 = 804.81/x
3. Step 3: Cross multiply
   1,394.16x = 1,923.93 × 804.81
4. Step 4: Simplify right side
   1,394.16x = 1,548,398.10
5. Step 5: Solve for x
   x = 1,548,398.10/1,394.16
6. Step 6: Final answer
   x = 1,110.63