Finding the Fourth Proportional to 2,642.41, 3,964.83 and 999.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,642.41 : 3,964.83 = 999.73 : x
2. Step 2: Convert to fraction form
   2,642.41/3,964.83 = 999.73/x
3. Step 3: Cross multiply
   2,642.41x = 3,964.83 × 999.73
4. Step 4: Simplify right side
   2,642.41x = 3,963,759.50
5. Step 5: Solve for x
   x = 3,963,759.50/2,642.41
6. Step 6: Final answer
   x = 1,500.05