Finding the Fourth Proportional to 1,443.62, 2,159.87 and 954.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.62 : 2,159.87 = 954.38 : x
2. Step 2: Convert to fraction form
   1,443.62/2,159.87 = 954.38/x
3. Step 3: Cross multiply
   1,443.62x = 2,159.87 × 954.38
4. Step 4: Simplify right side
   1,443.62x = 2,061,337.36
5. Step 5: Solve for x
   x = 2,061,337.36/1,443.62
6. Step 6: Final answer
   x = 1,427.89