Finding the Fourth Proportional to 1,851.43, 2,553.32 and 1,105.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,851.43 : 2,553.32 = 1,105.12 : x
2. Step 2: Convert to fraction form
   1,851.43/2,553.32 = 1,105.12/x
3. Step 3: Cross multiply
   1,851.43x = 2,553.32 × 1,105.12
4. Step 4: Simplify right side
   1,851.43x = 2,821,723.77
5. Step 5: Solve for x
   x = 2,821,723.77/1,851.43
6. Step 6: Final answer
   x = 1,524.08