Finding the Fourth Proportional to 1,393.62, 1,923.36 and 804.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,393.62 : 1,923.36 = 804.14 : x
2. Step 2: Convert to fraction form
   1,393.62/1,923.36 = 804.14/x
3. Step 3: Cross multiply
   1,393.62x = 1,923.36 × 804.14
4. Step 4: Simplify right side
   1,393.62x = 1,546,655.52
5. Step 5: Solve for x
   x = 1,546,655.52/1,393.62
6. Step 6: Final answer
   x = 1,109.81