Finding the Fourth Proportional to 3,929.06, 5,422.82 and 2,357.39

Step by Step Solution

1. Step 1: Write the proportion equation
   3,929.06 : 5,422.82 = 2,357.39 : x
2. Step 2: Convert to fraction form
   3,929.06/5,422.82 = 2,357.39/x
3. Step 3: Cross multiply
   3,929.06x = 5,422.82 × 2,357.39
4. Step 4: Simplify right side
   3,929.06x = 12,783,662.74
5. Step 5: Solve for x
   x = 12,783,662.74/3,929.06
6. Step 6: Final answer
   x = 3,253.62