Finding the Fourth Proportional to 2,671.59, 3,686.61 and 1,609.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,671.59 : 3,686.61 = 1,609.50 : x
2. Step 2: Convert to fraction form
   2,671.59/3,686.61 = 1,609.50/x
3. Step 3: Cross multiply
   2,671.59x = 3,686.61 × 1,609.50
4. Step 4: Simplify right side
   2,671.59x = 5,933,598.80
5. Step 5: Solve for x
   x = 5,933,598.80/2,671.59
6. Step 6: Final answer
   x = 2,221.00