Finding the Fourth Proportional to 3,669.89, 5,499.96 and 1,999.73

Step by Step Solution

1. Step 1: Write the proportion equation
   3,669.89 : 5,499.96 = 1,999.73 : x
2. Step 2: Convert to fraction form
   3,669.89/5,499.96 = 1,999.73/x
3. Step 3: Cross multiply
   3,669.89x = 5,499.96 × 1,999.73
4. Step 4: Simplify right side
   3,669.89x = 10,998,441.26
5. Step 5: Solve for x
   x = 10,998,441.26/3,669.89
6. Step 6: Final answer
   x = 2,996.94