Finding the Fourth Proportional to 2,097.42, 3,146.42 and 636.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,097.42 : 3,146.42 = 636.67 : x
2. Step 2: Convert to fraction form
   2,097.42/3,146.42 = 636.67/x
3. Step 3: Cross multiply
   2,097.42x = 3,146.42 × 636.67
4. Step 4: Simplify right side
   2,097.42x = 2,003,231.22
5. Step 5: Solve for x
   x = 2,003,231.22/2,097.42
6. Step 6: Final answer
   x = 955.09