Finding the Fourth Proportional to 2,096.31, 3,144.47 and 557.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,096.31 : 3,144.47 = 557.31 : x
2. Step 2: Convert to fraction form
   2,096.31/3,144.47 = 557.31/x
3. Step 3: Cross multiply
   2,096.31x = 3,144.47 × 557.31
4. Step 4: Simplify right side
   2,096.31x = 1,752,444.58
5. Step 5: Solve for x
   x = 1,752,444.58/2,096.31
6. Step 6: Final answer
   x = 835.97