Finding the Fourth Proportional to 4,456.22, 6,152.56 and 2,778.30

Step by Step Solution

1. Step 1: Write the proportion equation
   4,456.22 : 6,152.56 = 2,778.30 : x
2. Step 2: Convert to fraction form
   4,456.22/6,152.56 = 2,778.30/x
3. Step 3: Cross multiply
   4,456.22x = 6,152.56 × 2,778.30
4. Step 4: Simplify right side
   4,456.22x = 17,093,650.50
5. Step 5: Solve for x
   x = 17,093,650.50/4,456.22
6. Step 6: Final answer
   x = 3,835.91