Finding the Fourth Proportional to 2,728.84, 4,091.82 and 1,189

Step by Step Solution

1. Step 1: Write the proportion equation
   2,728.84 : 4,091.82 = 1,189 : x
2. Step 2: Convert to fraction form
   2,728.84/4,091.82 = 1,189/x
3. Step 3: Cross multiply
   2,728.84x = 4,091.82 × 1,189
4. Step 4: Simplify right side
   2,728.84x = 4,865,173.98
5. Step 5: Solve for x
   x = 4,865,173.98/2,728.84
6. Step 6: Final answer
   x = 1,782.87