Finding the Fourth Proportional to 1,356.93, 1,871.99 and 959.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,356.93 : 1,871.99 = 959.19 : x
2. Step 2: Convert to fraction form
   1,356.93/1,871.99 = 959.19/x
3. Step 3: Cross multiply
   1,356.93x = 1,871.99 × 959.19
4. Step 4: Simplify right side
   1,356.93x = 1,795,589.29
5. Step 5: Solve for x
   x = 1,795,589.29/1,356.93
6. Step 6: Final answer
   x = 1,323.27