Finding the Fourth Proportional to 2,087.37, 3,132.27 and 1,645.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.37 : 3,132.27 = 1,645.92 : x
2. Step 2: Convert to fraction form
   2,087.37/3,132.27 = 1,645.92/x
3. Step 3: Cross multiply
   2,087.37x = 3,132.27 × 1,645.92
4. Step 4: Simplify right side
   2,087.37x = 5,155,465.84
5. Step 5: Solve for x
   x = 5,155,465.84/2,087.37
6. Step 6: Final answer
   x = 2,469.84