Finding the Fourth Proportional to 2,657.88, 3,667.68 and 1,609.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,657.88 : 3,667.68 = 1,609.74 : x
2. Step 2: Convert to fraction form
   2,657.88/3,667.68 = 1,609.74/x
3. Step 3: Cross multiply
   2,657.88x = 3,667.68 × 1,609.74
4. Step 4: Simplify right side
   2,657.88x = 5,904,011.20
5. Step 5: Solve for x
   x = 5,904,011.20/2,657.88
6. Step 6: Final answer
   x = 2,221.32