Finding the Fourth Proportional to 1,988.28, 2,743.82 and 1,104.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,988.28 : 2,743.82 = 1,104.12 : x
2. Step 2: Convert to fraction form
   1,988.28/2,743.82 = 1,104.12/x
3. Step 3: Cross multiply
   1,988.28x = 2,743.82 × 1,104.12
4. Step 4: Simplify right side
   1,988.28x = 3,029,506.54
5. Step 5: Solve for x
   x = 3,029,506.54/1,988.28
6. Step 6: Final answer
   x = 1,523.68