Finding the Fourth Proportional to 3,086.04, 4,258.83 and 1,688.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,086.04 : 4,258.83 = 1,688.82 : x
2. Step 2: Convert to fraction form
   3,086.04/4,258.83 = 1,688.82/x
3. Step 3: Cross multiply
   3,086.04x = 4,258.83 × 1,688.82
4. Step 4: Simplify right side
   3,086.04x = 7,192,397.28
5. Step 5: Solve for x
   x = 7,192,397.28/3,086.04
6. Step 6: Final answer
   x = 2,330.62