Finding the Fourth Proportional to 2,253.94, 3,379.28 and 1,020.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,253.94 : 3,379.28 = 1,020.71 : x
2. Step 2: Convert to fraction form
   2,253.94/3,379.28 = 1,020.71/x
3. Step 3: Cross multiply
   2,253.94x = 3,379.28 × 1,020.71
4. Step 4: Simplify right side
   2,253.94x = 3,449,275.89
5. Step 5: Solve for x
   x = 3,449,275.89/2,253.94
6. Step 6: Final answer
   x = 1,530.33