Finding the Fourth Proportional to 2,150.79, 2,967.92 and 1,206.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.79 : 2,967.92 = 1,206.45 : x
2. Step 2: Convert to fraction form
   2,150.79/2,967.92 = 1,206.45/x
3. Step 3: Cross multiply
   2,150.79x = 2,967.92 × 1,206.45
4. Step 4: Simplify right side
   2,150.79x = 3,580,641.05
5. Step 5: Solve for x
   x = 3,580,641.05/2,150.79
6. Step 6: Final answer
   x = 1,664.80