Finding the Fourth Proportional to 1,411.20, 1,943.33 and 1,017.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.20 : 1,943.33 = 1,017.54 : x
2. Step 2: Convert to fraction form
   1,411.20/1,943.33 = 1,017.54/x
3. Step 3: Cross multiply
   1,411.20x = 1,943.33 × 1,017.54
4. Step 4: Simplify right side
   1,411.20x = 1,977,410.92
5. Step 5: Solve for x
   x = 1,977,410.92/1,411.20
6. Step 6: Final answer
   x = 1,401.23