Finding the Fourth Proportional to 2,225.25, 3,071.43 and 1,281.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,225.25 : 3,071.43 = 1,281.15 : x
2. Step 2: Convert to fraction form
   2,225.25/3,071.43 = 1,281.15/x
3. Step 3: Cross multiply
   2,225.25x = 3,071.43 × 1,281.15
4. Step 4: Simplify right side
   2,225.25x = 3,934,962.54
5. Step 5: Solve for x
   x = 3,934,962.54/2,225.25
6. Step 6: Final answer
   x = 1,768.32