Finding the Fourth Proportional to 2,083.43, 2,871.59 and 1,906.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.43 : 2,871.59 = 1,906.88 : x
2. Step 2: Convert to fraction form
   2,083.43/2,871.59 = 1,906.88/x
3. Step 3: Cross multiply
   2,083.43x = 2,871.59 × 1,906.88
4. Step 4: Simplify right side
   2,083.43x = 5,475,777.54
5. Step 5: Solve for x
   x = 5,475,777.54/2,083.43
6. Step 6: Final answer
   x = 2,628.25