Finding the Fourth Proportional to 2,278.52, 3,144.32 and 1,283.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,278.52 : 3,144.32 = 1,283.89 : x
2. Step 2: Convert to fraction form
   2,278.52/3,144.32 = 1,283.89/x
3. Step 3: Cross multiply
   2,278.52x = 3,144.32 × 1,283.89
4. Step 4: Simplify right side
   2,278.52x = 4,036,961.00
5. Step 5: Solve for x
   x = 4,036,961.00/2,278.52
6. Step 6: Final answer
   x = 1,771.75