Finding the Fourth Proportional to 2,641.01, 3,962.72 and 998.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,641.01 : 3,962.72 = 998.12 : x
2. Step 2: Convert to fraction form
   2,641.01/3,962.72 = 998.12/x
3. Step 3: Cross multiply
   2,641.01x = 3,962.72 × 998.12
4. Step 4: Simplify right side
   2,641.01x = 3,955,282.49
5. Step 5: Solve for x
   x = 3,955,282.49/2,641.01
6. Step 6: Final answer
   x = 1,497.64