Finding the Fourth Proportional to 2,317.12, 3,488.22 and 2,116.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,317.12 : 3,488.22 = 2,116.24 : x
2. Step 2: Convert to fraction form
   2,317.12/3,488.22 = 2,116.24/x
3. Step 3: Cross multiply
   2,317.12x = 3,488.22 × 2,116.24
4. Step 4: Simplify right side
   2,317.12x = 7,381,910.69
5. Step 5: Solve for x
   x = 7,381,910.69/2,317.12
6. Step 6: Final answer
   x = 3,185.81