Finding the Fourth Proportional to 1,936.82, 2,672.89 and 1,191.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,936.82 : 2,672.89 = 1,191.04 : x
2. Step 2: Convert to fraction form
   1,936.82/2,672.89 = 1,191.04/x
3. Step 3: Cross multiply
   1,936.82x = 2,672.89 × 1,191.04
4. Step 4: Simplify right side
   1,936.82x = 3,183,509.25
5. Step 5: Solve for x
   x = 3,183,509.25/1,936.82
6. Step 6: Final answer
   x = 1,643.68