Finding the Fourth Proportional to 2,262.03, 3,121.69 and 1,267.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,262.03 : 3,121.69 = 1,267.31 : x
2. Step 2: Convert to fraction form
   2,262.03/3,121.69 = 1,267.31/x
3. Step 3: Cross multiply
   2,262.03x = 3,121.69 × 1,267.31
4. Step 4: Simplify right side
   2,262.03x = 3,956,157.49
5. Step 5: Solve for x
   x = 3,956,157.49/2,262.03
6. Step 6: Final answer
   x = 1,748.94