Finding the Fourth Proportional to 2,096.89, 3,145.40 and 636.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,096.89 : 3,145.40 = 636.05 : x
2. Step 2: Convert to fraction form
   2,096.89/3,145.40 = 636.05/x
3. Step 3: Cross multiply
   2,096.89x = 3,145.40 × 636.05
4. Step 4: Simplify right side
   2,096.89x = 2,000,638.74
5. Step 5: Solve for x
   x = 2,000,638.74/2,096.89
6. Step 6: Final answer
   x = 954.10