Finding the Fourth Proportional to 2,282.81, 3,147.65 and 1,686.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,282.81 : 3,147.65 = 1,686.17 : x
2. Step 2: Convert to fraction form
   2,282.81/3,147.65 = 1,686.17/x
3. Step 3: Cross multiply
   2,282.81x = 3,147.65 × 1,686.17
4. Step 4: Simplify right side
   2,282.81x = 5,307,448.83
5. Step 5: Solve for x
   x = 5,307,448.83/2,282.81
6. Step 6: Final answer
   x = 2,324.97