Finding the Fourth Proportional to 3,661.47, 5,489.78 and 2,362.23

Step by Step Solution

1. Step 1: Write the proportion equation
   3,661.47 : 5,489.78 = 2,362.23 : x
2. Step 2: Convert to fraction form
   3,661.47/5,489.78 = 2,362.23/x
3. Step 3: Cross multiply
   3,661.47x = 5,489.78 × 2,362.23
4. Step 4: Simplify right side
   3,661.47x = 12,968,111.20
5. Step 5: Solve for x
   x = 12,968,111.20/3,661.47
6. Step 6: Final answer
   x = 3,541.78