Finding the Fourth Proportional to 1,613.05, 2,225.27 and 1,170.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,613.05 : 2,225.27 = 1,170.18 : x
2. Step 2: Convert to fraction form
   1,613.05/2,225.27 = 1,170.18/x
3. Step 3: Cross multiply
   1,613.05x = 2,225.27 × 1,170.18
4. Step 4: Simplify right side
   1,613.05x = 2,603,969.37
5. Step 5: Solve for x
   x = 2,603,969.37/1,613.05
6. Step 6: Final answer
   x = 1,614.32