Finding the Fourth Proportional to 2,399.39, 3,311.77 and 1,562.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.39 : 3,311.77 = 1,562.18 : x
2. Step 2: Convert to fraction form
   2,399.39/3,311.77 = 1,562.18/x
3. Step 3: Cross multiply
   2,399.39x = 3,311.77 × 1,562.18
4. Step 4: Simplify right side
   2,399.39x = 5,173,580.86
5. Step 5: Solve for x
   x = 5,173,580.86/2,399.39
6. Step 6: Final answer
   x = 2,156.21