Finding the Fourth Proportional to 1,814.94, 2,504.38 and 1,018.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,814.94 : 2,504.38 = 1,018.30 : x
2. Step 2: Convert to fraction form
   1,814.94/2,504.38 = 1,018.30/x
3. Step 3: Cross multiply
   1,814.94x = 2,504.38 × 1,018.30
4. Step 4: Simplify right side
   1,814.94x = 2,550,210.15
5. Step 5: Solve for x
   x = 2,550,210.15/1,814.94
6. Step 6: Final answer
   x = 1,405.12