Finding the Fourth Proportional to 1,436.36, 2,151.94 and 1,107.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.36 : 2,151.94 = 1,107.82 : x
2. Step 2: Convert to fraction form
   1,436.36/2,151.94 = 1,107.82/x
3. Step 3: Cross multiply
   1,436.36x = 2,151.94 × 1,107.82
4. Step 4: Simplify right side
   1,436.36x = 2,383,962.17
5. Step 5: Solve for x
   x = 2,383,962.17/1,436.36
6. Step 6: Final answer
   x = 1,659.72