Finding the Fourth Proportional to 2,182.37, 3,275.89 and 1,209.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,182.37 : 3,275.89 = 1,209.29 : x
2. Step 2: Convert to fraction form
   2,182.37/3,275.89 = 1,209.29/x
3. Step 3: Cross multiply
   2,182.37x = 3,275.89 × 1,209.29
4. Step 4: Simplify right side
   2,182.37x = 3,961,481.62
5. Step 5: Solve for x
   x = 3,961,481.62/2,182.37
6. Step 6: Final answer
   x = 1,815.22