Finding the Fourth Proportional to 2,043.20, 3,062.75 and 809.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,043.20 : 3,062.75 = 809.37 : x
2. Step 2: Convert to fraction form
   2,043.20/3,062.75 = 809.37/x
3. Step 3: Cross multiply
   2,043.20x = 3,062.75 × 809.37
4. Step 4: Simplify right side
   2,043.20x = 2,478,878.61
5. Step 5: Solve for x
   x = 2,478,878.61/2,043.20
6. Step 6: Final answer
   x = 1,213.23