Finding the Fourth Proportional to 2,338.47, 3,505.68 and 1,105.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,338.47 : 3,505.68 = 1,105.25 : x
2. Step 2: Convert to fraction form
   2,338.47/3,505.68 = 1,105.25/x
3. Step 3: Cross multiply
   2,338.47x = 3,505.68 × 1,105.25
4. Step 4: Simplify right side
   2,338.47x = 3,874,635.29
5. Step 5: Solve for x
   x = 3,874,635.29/2,338.47
6. Step 6: Final answer
   x = 1,656.91