Finding the Fourth Proportional to 2,267.50, 3,129.29 and 1,272.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,267.50 : 3,129.29 = 1,272.83 : x
2. Step 2: Convert to fraction form
   2,267.50/3,129.29 = 1,272.83/x
3. Step 3: Cross multiply
   2,267.50x = 3,129.29 × 1,272.83
4. Step 4: Simplify right side
   2,267.50x = 3,983,054.19
5. Step 5: Solve for x
   x = 3,983,054.19/2,267.50
6. Step 6: Final answer
   x = 1,756.58