Finding the Fourth Proportional to 2,662.49, 3,993.77 and 1,019.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,662.49 : 3,993.77 = 1,019.12 : x
2. Step 2: Convert to fraction form
   2,662.49/3,993.77 = 1,019.12/x
3. Step 3: Cross multiply
   2,662.49x = 3,993.77 × 1,019.12
4. Step 4: Simplify right side
   2,662.49x = 4,070,130.88
5. Step 5: Solve for x
   x = 4,070,130.88/2,662.49
6. Step 6: Final answer
   x = 1,528.69