Finding the Fourth Proportional to 1,433.46, 1,975.82 and 1,013.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.46 : 1,975.82 = 1,013.28 : x
2. Step 2: Convert to fraction form
   1,433.46/1,975.82 = 1,013.28/x
3. Step 3: Cross multiply
   1,433.46x = 1,975.82 × 1,013.28
4. Step 4: Simplify right side
   1,433.46x = 2,002,052.11
5. Step 5: Solve for x
   x = 2,002,052.11/1,433.46
6. Step 6: Final answer
   x = 1,396.65