Finding the Fourth Proportional to 3,669.58, 5,499.51 and 1,999.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,669.58 : 5,499.51 = 1,999.42 : x
2. Step 2: Convert to fraction form
   3,669.58/5,499.51 = 1,999.42/x
3. Step 3: Cross multiply
   3,669.58x = 5,499.51 × 1,999.42
4. Step 4: Simplify right side
   3,669.58x = 10,995,839.97
5. Step 5: Solve for x
   x = 10,995,839.97/3,669.58
6. Step 6: Final answer
   x = 2,996.48