Finding the Fourth Proportional to 2,669.49, 4,002.70 and 1,107.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,669.49 : 4,002.70 = 1,107.71 : x
2. Step 2: Convert to fraction form
   2,669.49/4,002.70 = 1,107.71/x
3. Step 3: Cross multiply
   2,669.49x = 4,002.70 × 1,107.71
4. Step 4: Simplify right side
   2,669.49x = 4,433,830.82
5. Step 5: Solve for x
   x = 4,433,830.82/2,669.49
6. Step 6: Final answer
   x = 1,660.93