Finding the Fourth Proportional to 2,117.33, 3,170.85 and 1,074.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,117.33 : 3,170.85 = 1,074.59 : x
2. Step 2: Convert to fraction form
   2,117.33/3,170.85 = 1,074.59/x
3. Step 3: Cross multiply
   2,117.33x = 3,170.85 × 1,074.59
4. Step 4: Simplify right side
   2,117.33x = 3,407,347.85
5. Step 5: Solve for x
   x = 3,407,347.85/2,117.33
6. Step 6: Final answer
   x = 1,609.27