Finding the Fourth Proportional to 2,224.89, 3,070.58 and 1,280.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,224.89 : 3,070.58 = 1,280.72 : x
2. Step 2: Convert to fraction form
   2,224.89/3,070.58 = 1,280.72/x
3. Step 3: Cross multiply
   2,224.89x = 3,070.58 × 1,280.72
4. Step 4: Simplify right side
   2,224.89x = 3,932,553.22
5. Step 5: Solve for x
   x = 3,932,553.22/2,224.89
6. Step 6: Final answer
   x = 1,767.53