Finding the Fourth Proportional to 3,665.62, 5,055.82 and 2,319.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.62 : 5,055.82 = 2,319.22 : x
2. Step 2: Convert to fraction form
   3,665.62/5,055.82 = 2,319.22/x
3. Step 3: Cross multiply
   3,665.62x = 5,055.82 × 2,319.22
4. Step 4: Simplify right side
   3,665.62x = 11,725,558.86
5. Step 5: Solve for x
   x = 11,725,558.86/3,665.62
6. Step 6: Final answer
   x = 3,198.79