Finding the Fourth Proportional to 1,891.38, 2,610.12 and 1,105.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,891.38 : 2,610.12 = 1,105.27 : x
2. Step 2: Convert to fraction form
   1,891.38/2,610.12 = 1,105.27/x
3. Step 3: Cross multiply
   1,891.38x = 2,610.12 × 1,105.27
4. Step 4: Simplify right side
   1,891.38x = 2,884,887.33
5. Step 5: Solve for x
   x = 2,884,887.33/1,891.38
6. Step 6: Final answer
   x = 1,525.29