Finding the Fourth Proportional to 2,277.27, 3,142.94 and 1,689.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,277.27 : 3,142.94 = 1,689.48 : x
2. Step 2: Convert to fraction form
   2,277.27/3,142.94 = 1,689.48/x
3. Step 3: Cross multiply
   2,277.27x = 3,142.94 × 1,689.48
4. Step 4: Simplify right side
   2,277.27x = 5,309,925.82
5. Step 5: Solve for x
   x = 5,309,925.82/2,277.27
6. Step 6: Final answer
   x = 2,331.71