Finding the Fourth Proportional to 2,131.40, 3,196.28 and 650.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.40 : 3,196.28 = 650.34 : x
2. Step 2: Convert to fraction form
   2,131.40/3,196.28 = 650.34/x
3. Step 3: Cross multiply
   2,131.40x = 3,196.28 × 650.34
4. Step 4: Simplify right side
   2,131.40x = 2,078,668.74
5. Step 5: Solve for x
   x = 2,078,668.74/2,131.40
6. Step 6: Final answer
   x = 975.26