Finding the Fourth Proportional to 2,338.32, 3,506.88 and 1,105.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,338.32 : 3,506.88 = 1,105.40 : x
2. Step 2: Convert to fraction form
   2,338.32/3,506.88 = 1,105.40/x
3. Step 3: Cross multiply
   2,338.32x = 3,506.88 × 1,105.40
4. Step 4: Simplify right side
   2,338.32x = 3,876,505.15
5. Step 5: Solve for x
   x = 3,876,505.15/2,338.32
6. Step 6: Final answer
   x = 1,657.82