Finding the Fourth Proportional to 2,173.86, 3,257.91 and 1,017.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,173.86 : 3,257.91 = 1,017.18 : x
2. Step 2: Convert to fraction form
   2,173.86/3,257.91 = 1,017.18/x
3. Step 3: Cross multiply
   2,173.86x = 3,257.91 × 1,017.18
4. Step 4: Simplify right side
   2,173.86x = 3,313,880.89
5. Step 5: Solve for x
   x = 3,313,880.89/2,173.86
6. Step 6: Final answer
   x = 1,524.42