Finding the Fourth Proportional to 2,667.09, 3,681.50 and 1,605.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.09 : 3,681.50 = 1,605.45 : x
2. Step 2: Convert to fraction form
   2,667.09/3,681.50 = 1,605.45/x
3. Step 3: Cross multiply
   2,667.09x = 3,681.50 × 1,605.45
4. Step 4: Simplify right side
   2,667.09x = 5,910,464.18
5. Step 5: Solve for x
   x = 5,910,464.18/2,667.09
6. Step 6: Final answer
   x = 2,216.07