Finding the Fourth Proportional to 1,589.18, 2,384.45 and 859.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,589.18 : 2,384.45 = 859.27 : x
2. Step 2: Convert to fraction form
   1,589.18/2,384.45 = 859.27/x
3. Step 3: Cross multiply
   1,589.18x = 2,384.45 × 859.27
4. Step 4: Simplify right side
   1,589.18x = 2,048,886.35
5. Step 5: Solve for x
   x = 2,048,886.35/1,589.18
6. Step 6: Final answer
   x = 1,289.27