Finding the Fourth Proportional to 2,280.52, 3,418.76 and 1,109.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,280.52 : 3,418.76 = 1,109.88 : x
2. Step 2: Convert to fraction form
   2,280.52/3,418.76 = 1,109.88/x
3. Step 3: Cross multiply
   2,280.52x = 3,418.76 × 1,109.88
4. Step 4: Simplify right side
   2,280.52x = 3,794,413.35
5. Step 5: Solve for x
   x = 3,794,413.35/2,280.52
6. Step 6: Final answer
   x = 1,663.84