Finding the Fourth Proportional to 2,113.74, 3,171.42 and 1,017.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113.74 : 3,171.42 = 1,017.54 : x
2. Step 2: Convert to fraction form
   2,113.74/3,171.42 = 1,017.54/x
3. Step 3: Cross multiply
   2,113.74x = 3,171.42 × 1,017.54
4. Step 4: Simplify right side
   2,113.74x = 3,227,046.71
5. Step 5: Solve for x
   x = 3,227,046.71/2,113.74
6. Step 6: Final answer
   x = 1,526.70