Finding the Fourth Proportional to 2,667.62, 3,681.97 and 1,620.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.62 : 3,681.97 = 1,620.56 : x
2. Step 2: Convert to fraction form
   2,667.62/3,681.97 = 1,620.56/x
3. Step 3: Cross multiply
   2,667.62x = 3,681.97 × 1,620.56
4. Step 4: Simplify right side
   2,667.62x = 5,966,834.89
5. Step 5: Solve for x
   x = 5,966,834.89/2,667.62
6. Step 6: Final answer
   x = 2,236.77