Finding the Fourth Proportional to 2,170.68, 3,255.89 and 937.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,170.68 : 3,255.89 = 937.23 : x
2. Step 2: Convert to fraction form
   2,170.68/3,255.89 = 937.23/x
3. Step 3: Cross multiply
   2,170.68x = 3,255.89 × 937.23
4. Step 4: Simplify right side
   2,170.68x = 3,051,496.82
5. Step 5: Solve for x
   x = 3,051,496.82/2,170.68
6. Step 6: Final answer
   x = 1,405.78