Finding the Fourth Proportional to 2,030.82, 3,046.34 and 644.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,030.82 : 3,046.34 = 644.27 : x
2. Step 2: Convert to fraction form
   2,030.82/3,046.34 = 644.27/x
3. Step 3: Cross multiply
   2,030.82x = 3,046.34 × 644.27
4. Step 4: Simplify right side
   2,030.82x = 1,962,649.43
5. Step 5: Solve for x
   x = 1,962,649.43/2,030.82
6. Step 6: Final answer
   x = 966.43