Finding the Fourth Proportional to 2,630.57, 3,630.43 and 1,966.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,630.57 : 3,630.43 = 1,966.27 : x
2. Step 2: Convert to fraction form
   2,630.57/3,630.43 = 1,966.27/x
3. Step 3: Cross multiply
   2,630.57x = 3,630.43 × 1,966.27
4. Step 4: Simplify right side
   2,630.57x = 7,138,405.60
5. Step 5: Solve for x
   x = 7,138,405.60/2,630.57
6. Step 6: Final answer
   x = 2,713.63