Finding the Fourth Proportional to 2,271.98, 3,135.42 and 1,263.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,271.98 : 3,135.42 = 1,263.78 : x
2. Step 2: Convert to fraction form
   2,271.98/3,135.42 = 1,263.78/x
3. Step 3: Cross multiply
   2,271.98x = 3,135.42 × 1,263.78
4. Step 4: Simplify right side
   2,271.98x = 3,962,481.09
5. Step 5: Solve for x
   x = 3,962,481.09/2,271.98
6. Step 6: Final answer
   x = 1,744.06