Finding the Fourth Proportional to 3,664.76, 5,496.78 and 1,067.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,664.76 : 5,496.78 = 1,067.72 : x
2. Step 2: Convert to fraction form
   3,664.76/5,496.78 = 1,067.72/x
3. Step 3: Cross multiply
   3,664.76x = 5,496.78 × 1,067.72
4. Step 4: Simplify right side
   3,664.76x = 5,869,021.94
5. Step 5: Solve for x
   x = 5,869,021.94/3,664.76
6. Step 6: Final answer
   x = 1,601.48