Finding the Fourth Proportional to 2,443.82, 3,665.78 and 800.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.82 : 3,665.78 = 800.30 : x
2. Step 2: Convert to fraction form
   2,443.82/3,665.78 = 800.30/x
3. Step 3: Cross multiply
   2,443.82x = 3,665.78 × 800.30
4. Step 4: Simplify right side
   2,443.82x = 2,933,707.41
5. Step 5: Solve for x
   x = 2,933,707.41/2,443.82
6. Step 6: Final answer
   x = 1,200.46