Finding the Fourth Proportional to 1,861.24, 2,568.55 and 1,022.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,861.24 : 2,568.55 = 1,022.03 : x
2. Step 2: Convert to fraction form
   1,861.24/2,568.55 = 1,022.03/x
3. Step 3: Cross multiply
   1,861.24x = 2,568.55 × 1,022.03
4. Step 4: Simplify right side
   1,861.24x = 2,625,133.48
5. Step 5: Solve for x
   x = 2,625,133.48/1,861.24
6. Step 6: Final answer
   x = 1,410.42