Finding the Fourth Proportional to 2,658.78, 3,669.09 and 1,479.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,658.78 : 3,669.09 = 1,479.83 : x
2. Step 2: Convert to fraction form
   2,658.78/3,669.09 = 1,479.83/x
3. Step 3: Cross multiply
   2,658.78x = 3,669.09 × 1,479.83
4. Step 4: Simplify right side
   2,658.78x = 5,429,629.45
5. Step 5: Solve for x
   x = 5,429,629.45/2,658.78
6. Step 6: Final answer
   x = 2,042.15