Finding the Fourth Proportional to 1,360.50, 1,878.57 and 1,067.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,360.50 : 1,878.57 = 1,067.28 : x
2. Step 2: Convert to fraction form
   1,360.50/1,878.57 = 1,067.28/x
3. Step 3: Cross multiply
   1,360.50x = 1,878.57 × 1,067.28
4. Step 4: Simplify right side
   1,360.50x = 2,004,960.19
5. Step 5: Solve for x
   x = 2,004,960.19/1,360.50
6. Step 6: Final answer
   x = 1,473.69