Finding the Fourth Proportional to 2,265.98, 3,401.39 and 1,170.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,265.98 : 3,401.39 = 1,170.05 : x
2. Step 2: Convert to fraction form
   2,265.98/3,401.39 = 1,170.05/x
3. Step 3: Cross multiply
   2,265.98x = 3,401.39 × 1,170.05
4. Step 4: Simplify right side
   2,265.98x = 3,979,782.29
5. Step 5: Solve for x
   x = 3,979,782.29/2,265.98
6. Step 6: Final answer
   x = 1,756.32