Finding the Fourth Proportional to 1,340.55, 1,849.97 and 809.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,340.55 : 1,849.97 = 809.46 : x
2. Step 2: Convert to fraction form
   1,340.55/1,849.97 = 809.46/x
3. Step 3: Cross multiply
   1,340.55x = 1,849.97 × 809.46
4. Step 4: Simplify right side
   1,340.55x = 1,497,476.72
5. Step 5: Solve for x
   x = 1,497,476.72/1,340.55
6. Step 6: Final answer
   x = 1,117.06