Finding the Fourth Proportional to 1,859.01, 2,565.41 and 1,019.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,859.01 : 2,565.41 = 1,019.71 : x
2. Step 2: Convert to fraction form
   1,859.01/2,565.41 = 1,019.71/x
3. Step 3: Cross multiply
   1,859.01x = 2,565.41 × 1,019.71
4. Step 4: Simplify right side
   1,859.01x = 2,615,974.23
5. Step 5: Solve for x
   x = 2,615,974.23/1,859.01
6. Step 6: Final answer
   x = 1,407.19