Finding the Fourth Proportional to 1,581.53, 2,182.07 and 1,022.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,581.53 : 2,182.07 = 1,022.03 : x
2. Step 2: Convert to fraction form
   1,581.53/2,182.07 = 1,022.03/x
3. Step 3: Cross multiply
   1,581.53x = 2,182.07 × 1,022.03
4. Step 4: Simplify right side
   1,581.53x = 2,230,124.98
5. Step 5: Solve for x
   x = 2,230,124.98/1,581.53
6. Step 6: Final answer
   x = 1,410.11