Finding the Fourth Proportional to 2,403.15, 3,311.43 and 1,772.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,403.15 : 3,311.43 = 1,772.68 : x
2. Step 2: Convert to fraction form
   2,403.15/3,311.43 = 1,772.68/x
3. Step 3: Cross multiply
   2,403.15x = 3,311.43 × 1,772.68
4. Step 4: Simplify right side
   2,403.15x = 5,870,103.22
5. Step 5: Solve for x
   x = 5,870,103.22/2,403.15
6. Step 6: Final answer
   x = 2,442.67