Finding the Fourth Proportional to 2,096.25, 3,145.82 and 728.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,096.25 : 3,145.82 = 728.25 : x
2. Step 2: Convert to fraction form
   2,096.25/3,145.82 = 728.25/x
3. Step 3: Cross multiply
   2,096.25x = 3,145.82 × 728.25
4. Step 4: Simplify right side
   2,096.25x = 2,290,939.77
5. Step 5: Solve for x
   x = 2,290,939.77/2,096.25
6. Step 6: Final answer
   x = 1,092.88