Finding the Fourth Proportional to 3,969.12, 5,951.98 and 1,627.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,969.12 : 5,951.98 = 1,627.50 : x
2. Step 2: Convert to fraction form
   3,969.12/5,951.98 = 1,627.50/x
3. Step 3: Cross multiply
   3,969.12x = 5,951.98 × 1,627.50
4. Step 4: Simplify right side
   3,969.12x = 9,686,847.45
5. Step 5: Solve for x
   x = 9,686,847.45/3,969.12
6. Step 6: Final answer
   x = 2,440.55