Finding the Fourth Proportional to 2,236.82, 3,354.72 and 850.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,236.82 : 3,354.72 = 850.31 : x
2. Step 2: Convert to fraction form
   2,236.82/3,354.72 = 850.31/x
3. Step 3: Cross multiply
   2,236.82x = 3,354.72 × 850.31
4. Step 4: Simplify right side
   2,236.82x = 2,852,551.96
5. Step 5: Solve for x
   x = 2,852,551.96/2,236.82
6. Step 6: Final answer
   x = 1,275.27