Finding the Fourth Proportional to 2,022.55, 2,790.43 and 1,265.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,022.55 : 2,790.43 = 1,265.83 : x
2. Step 2: Convert to fraction form
   2,022.55/2,790.43 = 1,265.83/x
3. Step 3: Cross multiply
   2,022.55x = 2,790.43 × 1,265.83
4. Step 4: Simplify right side
   2,022.55x = 3,532,210.01
5. Step 5: Solve for x
   x = 3,532,210.01/2,022.55
6. Step 6: Final answer
   x = 1,746.41