Finding the Fourth Proportional to 2,641.46, 3,962.99 and 998.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,641.46 : 3,962.99 = 998.51 : x
2. Step 2: Convert to fraction form
   2,641.46/3,962.99 = 998.51/x
3. Step 3: Cross multiply
   2,641.46x = 3,962.99 × 998.51
4. Step 4: Simplify right side
   2,641.46x = 3,957,067.83
5. Step 5: Solve for x
   x = 3,957,067.83/2,641.46
6. Step 6: Final answer
   x = 1,498.06