Finding the Fourth Proportional to 2,280.93, 3,147.78 and 1,286.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,280.93 : 3,147.78 = 1,286.24 : x
2. Step 2: Convert to fraction form
   2,280.93/3,147.78 = 1,286.24/x
3. Step 3: Cross multiply
   2,280.93x = 3,147.78 × 1,286.24
4. Step 4: Simplify right side
   2,280.93x = 4,048,784.81
5. Step 5: Solve for x
   x = 4,048,784.81/2,280.93
6. Step 6: Final answer
   x = 1,775.06