Finding the Fourth Proportional to 2,616.15, 3,613.14 and 1,623.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,616.15 : 3,613.14 = 1,623.81 : x
2. Step 2: Convert to fraction form
   2,616.15/3,613.14 = 1,623.81/x
3. Step 3: Cross multiply
   2,616.15x = 3,613.14 × 1,623.81
4. Step 4: Simplify right side
   2,616.15x = 5,867,052.86
5. Step 5: Solve for x
   x = 5,867,052.86/2,616.15
6. Step 6: Final answer
   x = 2,242.63