Finding the Fourth Proportional to 2,280.16, 3,420.33 and 1,109.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,280.16 : 3,420.33 = 1,109.98 : x
2. Step 2: Convert to fraction form
   2,280.16/3,420.33 = 1,109.98/x
3. Step 3: Cross multiply
   2,280.16x = 3,420.33 × 1,109.98
4. Step 4: Simplify right side
   2,280.16x = 3,796,497.89
5. Step 5: Solve for x
   x = 3,796,497.89/2,280.16
6. Step 6: Final answer
   x = 1,665.01