Finding the Fourth Proportional to 1,906.15, 2,629.67 and 1,109.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,906.15 : 2,629.67 = 1,109.42 : x
2. Step 2: Convert to fraction form
   1,906.15/2,629.67 = 1,109.42/x
3. Step 3: Cross multiply
   1,906.15x = 2,629.67 × 1,109.42
4. Step 4: Simplify right side
   1,906.15x = 2,917,408.49
5. Step 5: Solve for x
   x = 2,917,408.49/1,906.15
6. Step 6: Final answer
   x = 1,530.52