Finding the Fourth Proportional to 2,267.02, 3,128.54 and 1,272.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,267.02 : 3,128.54 = 1,272.37 : x
2. Step 2: Convert to fraction form
   2,267.02/3,128.54 = 1,272.37/x
3. Step 3: Cross multiply
   2,267.02x = 3,128.54 × 1,272.37
4. Step 4: Simplify right side
   2,267.02x = 3,980,660.44
5. Step 5: Solve for x
   x = 3,980,660.44/2,267.02
6. Step 6: Final answer
   x = 1,755.90