Finding the Fourth Proportional to 2,050.98, 3,076.89 and 664.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,050.98 : 3,076.89 = 664.41 : x
2. Step 2: Convert to fraction form
   2,050.98/3,076.89 = 664.41/x
3. Step 3: Cross multiply
   2,050.98x = 3,076.89 × 664.41
4. Step 4: Simplify right side
   2,050.98x = 2,044,316.48
5. Step 5: Solve for x
   x = 2,044,316.48/2,050.98
6. Step 6: Final answer
   x = 996.75