Finding the Fourth Proportional to 1,608.05, 2,217.98 and 1,076.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,608.05 : 2,217.98 = 1,076.69 : x
2. Step 2: Convert to fraction form
   1,608.05/2,217.98 = 1,076.69/x
3. Step 3: Cross multiply
   1,608.05x = 2,217.98 × 1,076.69
4. Step 4: Simplify right side
   1,608.05x = 2,388,085.12
5. Step 5: Solve for x
   x = 2,388,085.12/1,608.05
6. Step 6: Final answer
   x = 1,485.08