Finding the Fourth Proportional to 1,988.38, 2,743.89 and 1,104.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,988.38 : 2,743.89 = 1,104.18 : x
2. Step 2: Convert to fraction form
   1,988.38/2,743.89 = 1,104.18/x
3. Step 3: Cross multiply
   1,988.38x = 2,743.89 × 1,104.18
4. Step 4: Simplify right side
   1,988.38x = 3,029,748.46
5. Step 5: Solve for x
   x = 3,029,748.46/1,988.38
6. Step 6: Final answer
   x = 1,523.73