Finding the Fourth Proportional to 2,001.36, 3,019.82 and 1,921.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,001.36 : 3,019.82 = 1,921.52 : x
2. Step 2: Convert to fraction form
   2,001.36/3,019.82 = 1,921.52/x
3. Step 3: Cross multiply
   2,001.36x = 3,019.82 × 1,921.52
4. Step 4: Simplify right side
   2,001.36x = 5,802,644.53
5. Step 5: Solve for x
   x = 5,802,644.53/2,001.36
6. Step 6: Final answer
   x = 2,899.35