Finding the Fourth Proportional to 1,839.50, 2,760.18 and 743.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,839.50 : 2,760.18 = 743.90 : x
2. Step 2: Convert to fraction form
   1,839.50/2,760.18 = 743.90/x
3. Step 3: Cross multiply
   1,839.50x = 2,760.18 × 743.90
4. Step 4: Simplify right side
   1,839.50x = 2,053,297.90
5. Step 5: Solve for x
   x = 2,053,297.90/1,839.50
6. Step 6: Final answer
   x = 1,116.23