Finding the Fourth Proportional to 2,180.89, 3,266.17 and 1,660.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,180.89 : 3,266.17 = 1,660.26 : x
2. Step 2: Convert to fraction form
   2,180.89/3,266.17 = 1,660.26/x
3. Step 3: Cross multiply
   2,180.89x = 3,266.17 × 1,660.26
4. Step 4: Simplify right side
   2,180.89x = 5,422,687.25
5. Step 5: Solve for x
   x = 5,422,687.25/2,180.89
6. Step 6: Final answer
   x = 2,486.46