Finding the Fourth Proportional to 2,119.52, 2,925.71 and 1,280.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,119.52 : 2,925.71 = 1,280.22 : x
2. Step 2: Convert to fraction form
   2,119.52/2,925.71 = 1,280.22/x
3. Step 3: Cross multiply
   2,119.52x = 2,925.71 × 1,280.22
4. Step 4: Simplify right side
   2,119.52x = 3,745,552.46
5. Step 5: Solve for x
   x = 3,745,552.46/2,119.52
6. Step 6: Final answer
   x = 1,767.17