Finding the Fourth Proportional to 2,260.60, 3,389.82 and 1,105

Step by Step Solution

1. Step 1: Write the proportion equation
   2,260.60 : 3,389.82 = 1,105 : x
2. Step 2: Convert to fraction form
   2,260.60/3,389.82 = 1,105/x
3. Step 3: Cross multiply
   2,260.60x = 3,389.82 × 1,105
4. Step 4: Simplify right side
   2,260.60x = 3,745,751.10
5. Step 5: Solve for x
   x = 3,745,751.10/2,260.60
6. Step 6: Final answer
   x = 1,656.97