Finding the Fourth Proportional to 2,147.41, 3,217.87 and 848.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147.41 : 3,217.87 = 848.17 : x
2. Step 2: Convert to fraction form
   2,147.41/3,217.87 = 848.17/x
3. Step 3: Cross multiply
   2,147.41x = 3,217.87 × 848.17
4. Step 4: Simplify right side
   2,147.41x = 2,729,300.80
5. Step 5: Solve for x
   x = 2,729,300.80/2,147.41
6. Step 6: Final answer
   x = 1,270.97