Finding the Fourth Proportional to 1,436.33, 2,155.58 and 1,151.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.33 : 2,155.58 = 1,151.21 : x
2. Step 2: Convert to fraction form
   1,436.33/2,155.58 = 1,151.21/x
3. Step 3: Cross multiply
   1,436.33x = 2,155.58 × 1,151.21
4. Step 4: Simplify right side
   1,436.33x = 2,481,525.25
5. Step 5: Solve for x
   x = 2,481,525.25/1,436.33
6. Step 6: Final answer
   x = 1,727.68