Finding the Fourth Proportional to 1,484.16, 2,046.18 and 1,217.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,484.16 : 2,046.18 = 1,217.62 : x
2. Step 2: Convert to fraction form
   1,484.16/2,046.18 = 1,217.62/x
3. Step 3: Cross multiply
   1,484.16x = 2,046.18 × 1,217.62
4. Step 4: Simplify right side
   1,484.16x = 2,491,469.69
5. Step 5: Solve for x
   x = 2,491,469.69/1,484.16
6. Step 6: Final answer
   x = 1,678.71