Finding the Fourth Proportional to 1,859.29, 2,565.89 and 1,020.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,859.29 : 2,565.89 = 1,020.03 : x
2. Step 2: Convert to fraction form
   1,859.29/2,565.89 = 1,020.03/x
3. Step 3: Cross multiply
   1,859.29x = 2,565.89 × 1,020.03
4. Step 4: Simplify right side
   1,859.29x = 2,617,284.78
5. Step 5: Solve for x
   x = 2,617,284.78/1,859.29
6. Step 6: Final answer
   x = 1,407.68