Finding the Fourth Proportional to 2,150.40, 2,967.68 and 1,206.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.40 : 2,967.68 = 1,206.50 : x
2. Step 2: Convert to fraction form
   2,150.40/2,967.68 = 1,206.50/x
3. Step 3: Cross multiply
   2,150.40x = 2,967.68 × 1,206.50
4. Step 4: Simplify right side
   2,150.40x = 3,580,485.05
5. Step 5: Solve for x
   x = 3,580,485.05/2,150.40
6. Step 6: Final answer
   x = 1,665.03