Finding the Fourth Proportional to 2,443.26, 3,658.41 and 1,920.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.26 : 3,658.41 = 1,920.54 : x
2. Step 2: Convert to fraction form
   2,443.26/3,658.41 = 1,920.54/x
3. Step 3: Cross multiply
   2,443.26x = 3,658.41 × 1,920.54
4. Step 4: Simplify right side
   2,443.26x = 7,026,122.74
5. Step 5: Solve for x
   x = 7,026,122.74/2,443.26
6. Step 6: Final answer
   x = 2,875.72