Finding the Fourth Proportional to 2,192.54, 3,287.72 and 804.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,192.54 : 3,287.72 = 804.84 : x
2. Step 2: Convert to fraction form
   2,192.54/3,287.72 = 804.84/x
3. Step 3: Cross multiply
   2,192.54x = 3,287.72 × 804.84
4. Step 4: Simplify right side
   2,192.54x = 2,646,088.56
5. Step 5: Solve for x
   x = 2,646,088.56/2,192.54
6. Step 6: Final answer
   x = 1,206.86