Finding the Fourth Proportional to 1,343.47, 1,853.35 and 804.85

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.47 : 1,853.35 = 804.85 : x
2. Step 2: Convert to fraction form
   1,343.47/1,853.35 = 804.85/x
3. Step 3: Cross multiply
   1,343.47x = 1,853.35 × 804.85
4. Step 4: Simplify right side
   1,343.47x = 1,491,662.10
5. Step 5: Solve for x
   x = 1,491,662.10/1,343.47
6. Step 6: Final answer
   x = 1,110.31