Finding the Fourth Proportional to 2,087.69, 3,133.06 and 1,681.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.69 : 3,133.06 = 1,681.73 : x
2. Step 2: Convert to fraction form
   2,087.69/3,133.06 = 1,681.73/x
3. Step 3: Cross multiply
   2,087.69x = 3,133.06 × 1,681.73
4. Step 4: Simplify right side
   2,087.69x = 5,268,958.75
5. Step 5: Solve for x
   x = 5,268,958.75/2,087.69
6. Step 6: Final answer
   x = 2,523.82