Finding the Fourth Proportional to 1,814.05, 2,503.30 and 1,028.11

Step by Step Solution

1. Step 1: Write the proportion equation
   1,814.05 : 2,503.30 = 1,028.11 : x
2. Step 2: Convert to fraction form
   1,814.05/2,503.30 = 1,028.11/x
3. Step 3: Cross multiply
   1,814.05x = 2,503.30 × 1,028.11
4. Step 4: Simplify right side
   1,814.05x = 2,573,667.76
5. Step 5: Solve for x
   x = 2,573,667.76/1,814.05
6. Step 6: Final answer
   x = 1,418.74