Finding the Fourth Proportional to 2,162.87, 3,235.88 and 1,644.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.87 : 3,235.88 = 1,644.37 : x
2. Step 2: Convert to fraction form
   2,162.87/3,235.88 = 1,644.37/x
3. Step 3: Cross multiply
   2,162.87x = 3,235.88 × 1,644.37
4. Step 4: Simplify right side
   2,162.87x = 5,320,998.22
5. Step 5: Solve for x
   x = 5,320,998.22/2,162.87
6. Step 6: Final answer
   x = 2,460.15