Finding the Fourth Proportional to 3,087.83, 4,259.99 and 1,906.85

Step by Step Solution

1. Step 1: Write the proportion equation
   3,087.83 : 4,259.99 = 1,906.85 : x
2. Step 2: Convert to fraction form
   3,087.83/4,259.99 = 1,906.85/x
3. Step 3: Cross multiply
   3,087.83x = 4,259.99 × 1,906.85
4. Step 4: Simplify right side
   3,087.83x = 8,123,131.10
5. Step 5: Solve for x
   x = 8,123,131.10/3,087.83
6. Step 6: Final answer
   x = 2,630.70