Finding the Fourth Proportional to 1,818.27, 2,508.61 and 1,109.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,818.27 : 2,508.61 = 1,109.86 : x
2. Step 2: Convert to fraction form
   1,818.27/2,508.61 = 1,109.86/x
3. Step 3: Cross multiply
   1,818.27x = 2,508.61 × 1,109.86
4. Step 4: Simplify right side
   1,818.27x = 2,784,209.11
5. Step 5: Solve for x
   x = 2,784,209.11/1,818.27
6. Step 6: Final answer
   x = 1,531.24