Finding the Fourth Proportional to 1,859.09, 2,565.61 and 1,019.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,859.09 : 2,565.61 = 1,019.83 : x
2. Step 2: Convert to fraction form
   1,859.09/2,565.61 = 1,019.83/x
3. Step 3: Cross multiply
   1,859.09x = 2,565.61 × 1,019.83
4. Step 4: Simplify right side
   1,859.09x = 2,616,483.46
5. Step 5: Solve for x
   x = 2,616,483.46/1,859.09
6. Step 6: Final answer
   x = 1,407.40