Finding the Fourth Proportional to 2,278.55, 3,144.55 and 1,270.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,278.55 : 3,144.55 = 1,270.32 : x
2. Step 2: Convert to fraction form
   2,278.55/3,144.55 = 1,270.32/x
3. Step 3: Cross multiply
   2,278.55x = 3,144.55 × 1,270.32
4. Step 4: Simplify right side
   2,278.55x = 3,994,569.03
5. Step 5: Solve for x
   x = 3,994,569.03/2,278.55
6. Step 6: Final answer
   x = 1,753.12