Finding the Fourth Proportional to 2,666.18, 3,995.33 and 1,206.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,666.18 : 3,995.33 = 1,206.36 : x
2. Step 2: Convert to fraction form
   2,666.18/3,995.33 = 1,206.36/x
3. Step 3: Cross multiply
   2,666.18x = 3,995.33 × 1,206.36
4. Step 4: Simplify right side
   2,666.18x = 4,819,800.27
5. Step 5: Solve for x
   x = 4,819,800.27/2,666.18
6. Step 6: Final answer
   x = 1,807.75