Finding the Fourth Proportional to 3,627.78, 5,442.57 and 1,436.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,627.78 : 5,442.57 = 1,436.22 : x
2. Step 2: Convert to fraction form
   3,627.78/5,442.57 = 1,436.22/x
3. Step 3: Cross multiply
   3,627.78x = 5,442.57 × 1,436.22
4. Step 4: Simplify right side
   3,627.78x = 7,816,727.89
5. Step 5: Solve for x
   x = 7,816,727.89/3,627.78
6. Step 6: Final answer
   x = 2,154.69