Finding the Fourth Proportional to 1,443.51, 2,165.31 and 959.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.51 : 2,165.31 = 959.94 : x
2. Step 2: Convert to fraction form
   1,443.51/2,165.31 = 959.94/x
3. Step 3: Cross multiply
   1,443.51x = 2,165.31 × 959.94
4. Step 4: Simplify right side
   1,443.51x = 2,078,567.68
5. Step 5: Solve for x
   x = 2,078,567.68/1,443.51
6. Step 6: Final answer
   x = 1,439.94