Finding the Fourth Proportional to 2,224.81, 3,070.47 and 1,280.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,224.81 : 3,070.47 = 1,280.89 : x
2. Step 2: Convert to fraction form
   2,224.81/3,070.47 = 1,280.89/x
3. Step 3: Cross multiply
   2,224.81x = 3,070.47 × 1,280.89
4. Step 4: Simplify right side
   2,224.81x = 3,932,934.32
5. Step 5: Solve for x
   x = 3,932,934.32/2,224.81
6. Step 6: Final answer
   x = 1,767.76