Finding the Fourth Proportional to 3,969.98, 5,956.90 and 1,630.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,969.98 : 5,956.90 = 1,630.69 : x
2. Step 2: Convert to fraction form
   3,969.98/5,956.90 = 1,630.69/x
3. Step 3: Cross multiply
   3,969.98x = 5,956.90 × 1,630.69
4. Step 4: Simplify right side
   3,969.98x = 9,713,841.38
5. Step 5: Solve for x
   x = 9,713,841.38/3,969.98
6. Step 6: Final answer
   x = 2,446.82