Finding the Fourth Proportional to 2,096.78, 3,145.17 and 635.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,096.78 : 3,145.17 = 635.94 : x
2. Step 2: Convert to fraction form
   2,096.78/3,145.17 = 635.94/x
3. Step 3: Cross multiply
   2,096.78x = 3,145.17 × 635.94
4. Step 4: Simplify right side
   2,096.78x = 2,000,139.41
5. Step 5: Solve for x
   x = 2,000,139.41/2,096.78
6. Step 6: Final answer
   x = 953.91