Finding the Fourth Proportional to 3,018.58, 4,162.72 and 2,355.19

Step by Step Solution

1. Step 1: Write the proportion equation
   3,018.58 : 4,162.72 = 2,355.19 : x
2. Step 2: Convert to fraction form
   3,018.58/4,162.72 = 2,355.19/x
3. Step 3: Cross multiply
   3,018.58x = 4,162.72 × 2,355.19
4. Step 4: Simplify right side
   3,018.58x = 9,803,996.52
5. Step 5: Solve for x
   x = 9,803,996.52/3,018.58
6. Step 6: Final answer
   x = 3,247.88