Finding the Fourth Proportional to 2,015.03, 3,020.34 and 1,322.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015.03 : 3,020.34 = 1,322.18 : x
2. Step 2: Convert to fraction form
   2,015.03/3,020.34 = 1,322.18/x
3. Step 3: Cross multiply
   2,015.03x = 3,020.34 × 1,322.18
4. Step 4: Simplify right side
   2,015.03x = 3,993,434.32
5. Step 5: Solve for x
   x = 3,993,434.32/2,015.03
6. Step 6: Final answer
   x = 1,981.82