Finding the Fourth Proportional to 2,012.10, 3,014.55 and 1,644.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.10 : 3,014.55 = 1,644.90 : x
2. Step 2: Convert to fraction form
   2,012.10/3,014.55 = 1,644.90/x
3. Step 3: Cross multiply
   2,012.10x = 3,014.55 × 1,644.90
4. Step 4: Simplify right side
   2,012.10x = 4,958,633.30
5. Step 5: Solve for x
   x = 4,958,633.30/2,012.10
6. Step 6: Final answer
   x = 2,464.41