Finding the Fourth Proportional to 1,814.50, 2,504.34 and 1,028.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,814.50 : 2,504.34 = 1,028.56 : x
2. Step 2: Convert to fraction form
   1,814.50/2,504.34 = 1,028.56/x
3. Step 3: Cross multiply
   1,814.50x = 2,504.34 × 1,028.56
4. Step 4: Simplify right side
   1,814.50x = 2,575,863.95
5. Step 5: Solve for x
   x = 2,575,863.95/1,814.50
6. Step 6: Final answer
   x = 1,419.60