Finding the Fourth Proportional to 3,636.17, 5,455.47 and 1,443.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,636.17 : 5,455.47 = 1,443.69 : x
2. Step 2: Convert to fraction form
   3,636.17/5,455.47 = 1,443.69/x
3. Step 3: Cross multiply
   3,636.17x = 5,455.47 × 1,443.69
4. Step 4: Simplify right side
   3,636.17x = 7,876,007.48
5. Step 5: Solve for x
   x = 7,876,007.48/3,636.17
6. Step 6: Final answer
   x = 2,166.02