Finding the Fourth Proportional to 2,665.73, 3,996.88 and 1,106.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665.73 : 3,996.88 = 1,106.81 : x
2. Step 2: Convert to fraction form
   2,665.73/3,996.88 = 1,106.81/x
3. Step 3: Cross multiply
   2,665.73x = 3,996.88 × 1,106.81
4. Step 4: Simplify right side
   2,665.73x = 4,423,767.75
5. Step 5: Solve for x
   x = 4,423,767.75/2,665.73
6. Step 6: Final answer
   x = 1,659.50