Finding the Fourth Proportional to 1,371.10, 1,890.44 and 1,105.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,371.10 : 1,890.44 = 1,105.82 : x
2. Step 2: Convert to fraction form
   1,371.10/1,890.44 = 1,105.82/x
3. Step 3: Cross multiply
   1,371.10x = 1,890.44 × 1,105.82
4. Step 4: Simplify right side
   1,371.10x = 2,090,480.83
5. Step 5: Solve for x
   x = 2,090,480.83/1,371.10
6. Step 6: Final answer
   x = 1,524.68