Finding the Fourth Proportional to 2,339.72, 3,228.83 and 1,277.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,339.72 : 3,228.83 = 1,277.49 : x
2. Step 2: Convert to fraction form
   2,339.72/3,228.83 = 1,277.49/x
3. Step 3: Cross multiply
   2,339.72x = 3,228.83 × 1,277.49
4. Step 4: Simplify right side
   2,339.72x = 4,124,791.65
5. Step 5: Solve for x
   x = 4,124,791.65/2,339.72
6. Step 6: Final answer
   x = 1,762.95