Finding the Fourth Proportional to 2,189.24, 3,278.10 and 1,676.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.24 : 3,278.10 = 1,676.60 : x
2. Step 2: Convert to fraction form
   2,189.24/3,278.10 = 1,676.60/x
3. Step 3: Cross multiply
   2,189.24x = 3,278.10 × 1,676.60
4. Step 4: Simplify right side
   2,189.24x = 5,496,062.46
5. Step 5: Solve for x
   x = 5,496,062.46/2,189.24
6. Step 6: Final answer
   x = 2,510.49