Finding the Fourth Proportional to 2,443.96, 3,665.71 and 800.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.96 : 3,665.71 = 800.47 : x
2. Step 2: Convert to fraction form
   2,443.96/3,665.71 = 800.47/x
3. Step 3: Cross multiply
   2,443.96x = 3,665.71 × 800.47
4. Step 4: Simplify right side
   2,443.96x = 2,934,290.88
5. Step 5: Solve for x
   x = 2,934,290.88/2,443.96
6. Step 6: Final answer
   x = 1,200.63