Finding the Fourth Proportional to 1,818.06, 2,508.78 and 1,119.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,818.06 : 2,508.78 = 1,119.30 : x
2. Step 2: Convert to fraction form
   1,818.06/2,508.78 = 1,119.30/x
3. Step 3: Cross multiply
   1,818.06x = 2,508.78 × 1,119.30
4. Step 4: Simplify right side
   1,818.06x = 2,808,077.45
5. Step 5: Solve for x
   x = 2,808,077.45/1,818.06
6. Step 6: Final answer
   x = 1,544.55