Finding the Fourth Proportional to 1,394.56, 1,924.28 and 804.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,394.56 : 1,924.28 = 804.99 : x
2. Step 2: Convert to fraction form
   1,394.56/1,924.28 = 804.99/x
3. Step 3: Cross multiply
   1,394.56x = 1,924.28 × 804.99
4. Step 4: Simplify right side
   1,394.56x = 1,549,016.54
5. Step 5: Solve for x
   x = 1,549,016.54/1,394.56
6. Step 6: Final answer
   x = 1,110.75