Finding the Fourth Proportional to 1,814.62, 2,504.10 and 1,028.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,814.62 : 2,504.10 = 1,028.72 : x
2. Step 2: Convert to fraction form
   1,814.62/2,504.10 = 1,028.72/x
3. Step 3: Cross multiply
   1,814.62x = 2,504.10 × 1,028.72
4. Step 4: Simplify right side
   1,814.62x = 2,576,017.75
5. Step 5: Solve for x
   x = 2,576,017.75/1,814.62
6. Step 6: Final answer
   x = 1,419.59