Finding the Fourth Proportional to 2,084.30, 3,123.72 and 850.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,084.30 : 3,123.72 = 850.25 : x
2. Step 2: Convert to fraction form
   2,084.30/3,123.72 = 850.25/x
3. Step 3: Cross multiply
   2,084.30x = 3,123.72 × 850.25
4. Step 4: Simplify right side
   2,084.30x = 2,655,942.93
5. Step 5: Solve for x
   x = 2,655,942.93/2,084.30
6. Step 6: Final answer
   x = 1,274.26