Finding the Fourth Proportional to 1,613.91, 2,401.57 and 1,608.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,613.91 : 2,401.57 = 1,608.44 : x
2. Step 2: Convert to fraction form
   1,613.91/2,401.57 = 1,608.44/x
3. Step 3: Cross multiply
   1,613.91x = 2,401.57 × 1,608.44
4. Step 4: Simplify right side
   1,613.91x = 3,862,775.71
5. Step 5: Solve for x
   x = 3,862,775.71/1,613.91
6. Step 6: Final answer
   x = 2,393.43