Finding the Fourth Proportional to 2,113.41, 3,170.58 and 1,017.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113.41 : 3,170.58 = 1,017.18 : x
2. Step 2: Convert to fraction form
   2,113.41/3,170.58 = 1,017.18/x
3. Step 3: Cross multiply
   2,113.41x = 3,170.58 × 1,017.18
4. Step 4: Simplify right side
   2,113.41x = 3,225,050.56
5. Step 5: Solve for x
   x = 3,225,050.56/2,113.41
6. Step 6: Final answer
   x = 1,525.99