Finding the Fourth Proportional to 2,339.58, 3,228.71 and 1,277.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,339.58 : 3,228.71 = 1,277.42 : x
2. Step 2: Convert to fraction form
   2,339.58/3,228.71 = 1,277.42/x
3. Step 3: Cross multiply
   2,339.58x = 3,228.71 × 1,277.42
4. Step 4: Simplify right side
   2,339.58x = 4,124,421.54
5. Step 5: Solve for x
   x = 4,124,421.54/2,339.58
6. Step 6: Final answer
   x = 1,762.89