Finding the Fourth Proportional to 2,030.67, 3,046.52 and 644.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,030.67 : 3,046.52 = 644.02 : x
2. Step 2: Convert to fraction form
   2,030.67/3,046.52 = 644.02/x
3. Step 3: Cross multiply
   2,030.67x = 3,046.52 × 644.02
4. Step 4: Simplify right side
   2,030.67x = 1,962,013.80
5. Step 5: Solve for x
   x = 1,962,013.80/2,030.67
6. Step 6: Final answer
   x = 966.19