Finding the Fourth Proportional to 3,015.87, 4,162.02 and 1,689.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,015.87 : 4,162.02 = 1,689.59 : x
2. Step 2: Convert to fraction form
   3,015.87/4,162.02 = 1,689.59/x
3. Step 3: Cross multiply
   3,015.87x = 4,162.02 × 1,689.59
4. Step 4: Simplify right side
   3,015.87x = 7,032,086.56
5. Step 5: Solve for x
   x = 7,032,086.56/3,015.87
6. Step 6: Final answer
   x = 2,331.69