Finding the Fourth Proportional to 2,867.56, 3,957.06 and 1,608.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,867.56 : 3,957.06 = 1,608.72 : x
2. Step 2: Convert to fraction form
   2,867.56/3,957.06 = 1,608.72/x
3. Step 3: Cross multiply
   2,867.56x = 3,957.06 × 1,608.72
4. Step 4: Simplify right side
   2,867.56x = 6,365,801.56
5. Step 5: Solve for x
   x = 6,365,801.56/2,867.56
6. Step 6: Final answer
   x = 2,219.94