Finding the Fourth Proportional to 1,616.22, 2,421.12 and 1,066.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,616.22 : 2,421.12 = 1,066.71 : x
2. Step 2: Convert to fraction form
   1,616.22/2,421.12 = 1,066.71/x
3. Step 3: Cross multiply
   1,616.22x = 2,421.12 × 1,066.71
4. Step 4: Simplify right side
   1,616.22x = 2,582,632.92
5. Step 5: Solve for x
   x = 2,582,632.92/1,616.22
6. Step 6: Final answer
   x = 1,597.95