Finding the Fourth Proportional to 2,117.94, 3,175.28 and 962.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,117.94 : 3,175.28 = 962.88 : x
2. Step 2: Convert to fraction form
   2,117.94/3,175.28 = 962.88/x
3. Step 3: Cross multiply
   2,117.94x = 3,175.28 × 962.88
4. Step 4: Simplify right side
   2,117.94x = 3,057,413.61
5. Step 5: Solve for x
   x = 3,057,413.61/2,117.94
6. Step 6: Final answer
   x = 1,443.58