Finding the Fourth Proportional to 1,431.96, 1,973.34 and 1,017.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,431.96 : 1,973.34 = 1,017.24 : x
2. Step 2: Convert to fraction form
   1,431.96/1,973.34 = 1,017.24/x
3. Step 3: Cross multiply
   1,431.96x = 1,973.34 × 1,017.24
4. Step 4: Simplify right side
   1,431.96x = 2,007,360.38
5. Step 5: Solve for x
   x = 2,007,360.38/1,431.96
6. Step 6: Final answer
   x = 1,401.83