Finding the Fourth Proportional to 3,317.30, 4,578.10 and 2,196.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,317.30 : 4,578.10 = 2,196.32 : x
2. Step 2: Convert to fraction form
   3,317.30/4,578.10 = 2,196.32/x
3. Step 3: Cross multiply
   3,317.30x = 4,578.10 × 2,196.32
4. Step 4: Simplify right side
   3,317.30x = 10,054,972.59
5. Step 5: Solve for x
   x = 10,054,972.59/3,317.30
6. Step 6: Final answer
   x = 3,031.07