Finding the Fourth Proportional to 2,185.10, 3,276.69 and 850.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.10 : 3,276.69 = 850.70 : x
2. Step 2: Convert to fraction form
   2,185.10/3,276.69 = 850.70/x
3. Step 3: Cross multiply
   2,185.10x = 3,276.69 × 850.70
4. Step 4: Simplify right side
   2,185.10x = 2,787,463.80
5. Step 5: Solve for x
   x = 2,787,463.80/2,185.10
6. Step 6: Final answer
   x = 1,275.67