Finding the Fourth Proportional to 1,298.37, 1,791.52 and 738.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,298.37 : 1,791.52 = 738.71 : x
2. Step 2: Convert to fraction form
   1,298.37/1,791.52 = 738.71/x
3. Step 3: Cross multiply
   1,298.37x = 1,791.52 × 738.71
4. Step 4: Simplify right side
   1,298.37x = 1,323,413.74
5. Step 5: Solve for x
   x = 1,323,413.74/1,298.37
6. Step 6: Final answer
   x = 1,019.29