Finding the Fourth Proportional to 2,224.45, 3,068.79 and 1,280.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,224.45 : 3,068.79 = 1,280.02 : x
2. Step 2: Convert to fraction form
   2,224.45/3,068.79 = 1,280.02/x
3. Step 3: Cross multiply
   2,224.45x = 3,068.79 × 1,280.02
4. Step 4: Simplify right side
   2,224.45x = 3,928,112.58
5. Step 5: Solve for x
   x = 3,928,112.58/2,224.45
6. Step 6: Final answer
   x = 1,765.88