Finding the Fourth Proportional to 3,447.75, 5,171.59 and 850.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,447.75 : 5,171.59 = 850.69 : x
2. Step 2: Convert to fraction form
   3,447.75/5,171.59 = 850.69/x
3. Step 3: Cross multiply
   3,447.75x = 5,171.59 × 850.69
4. Step 4: Simplify right side
   3,447.75x = 4,399,419.90
5. Step 5: Solve for x
   x = 4,399,419.90/3,447.75
6. Step 6: Final answer
   x = 1,276.03