Finding the Fourth Proportional to 2,180.67, 3,272.22 and 1,631.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,180.67 : 3,272.22 = 1,631.22 : x
2. Step 2: Convert to fraction form
   2,180.67/3,272.22 = 1,631.22/x
3. Step 3: Cross multiply
   2,180.67x = 3,272.22 × 1,631.22
4. Step 4: Simplify right side
   2,180.67x = 5,337,710.71
5. Step 5: Solve for x
   x = 5,337,710.71/2,180.67
6. Step 6: Final answer
   x = 2,447.74