Finding the Fourth Proportional to 3,642.03, 5,459.22 and 1,998.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,642.03 : 5,459.22 = 1,998.09 : x
2. Step 2: Convert to fraction form
   3,642.03/5,459.22 = 1,998.09/x
3. Step 3: Cross multiply
   3,642.03x = 5,459.22 × 1,998.09
4. Step 4: Simplify right side
   3,642.03x = 10,908,012.89
5. Step 5: Solve for x
   x = 10,908,012.89/3,642.03
6. Step 6: Final answer
   x = 2,995.04