Finding the Fourth Proportional to 1,418.34, 1,957.25 and 859.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,418.34 : 1,957.25 = 859.04 : x
2. Step 2: Convert to fraction form
   1,418.34/1,957.25 = 859.04/x
3. Step 3: Cross multiply
   1,418.34x = 1,957.25 × 859.04
4. Step 4: Simplify right side
   1,418.34x = 1,681,356.04
5. Step 5: Solve for x
   x = 1,681,356.04/1,418.34
6. Step 6: Final answer
   x = 1,185.44