Finding the Fourth Proportional to 1,813.83, 2,502.33 and 1,105.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,813.83 : 2,502.33 = 1,105.43 : x
2. Step 2: Convert to fraction form
   1,813.83/2,502.33 = 1,105.43/x
3. Step 3: Cross multiply
   1,813.83x = 2,502.33 × 1,105.43
4. Step 4: Simplify right side
   1,813.83x = 2,766,138.14
5. Step 5: Solve for x
   x = 2,766,138.14/1,813.83
6. Step 6: Final answer
   x = 1,525.03