Finding the Fourth Proportional to 1,297.98, 1,791.15 and 738.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,297.98 : 1,791.15 = 738.47 : x
2. Step 2: Convert to fraction form
   1,297.98/1,791.15 = 738.47/x
3. Step 3: Cross multiply
   1,297.98x = 1,791.15 × 738.47
4. Step 4: Simplify right side
   1,297.98x = 1,322,710.54
5. Step 5: Solve for x
   x = 1,322,710.54/1,297.98
6. Step 6: Final answer
   x = 1,019.05