Finding the Fourth Proportional to 2,616.46, 3,610.24 and 1,986.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,616.46 : 3,610.24 = 1,986.82 : x
2. Step 2: Convert to fraction form
   2,616.46/3,610.24 = 1,986.82/x
3. Step 3: Cross multiply
   2,616.46x = 3,610.24 × 1,986.82
4. Step 4: Simplify right side
   2,616.46x = 7,172,883.04
5. Step 5: Solve for x
   x = 7,172,883.04/2,616.46
6. Step 6: Final answer
   x = 2,741.45