Finding the Fourth Proportional to 2,062.35, 3,086.31 and 1,687.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,062.35 : 3,086.31 = 1,687.83 : x
2. Step 2: Convert to fraction form
   2,062.35/3,086.31 = 1,687.83/x
3. Step 3: Cross multiply
   2,062.35x = 3,086.31 × 1,687.83
4. Step 4: Simplify right side
   2,062.35x = 5,209,166.61
5. Step 5: Solve for x
   x = 5,209,166.61/2,062.35
6. Step 6: Final answer
   x = 2,525.84