Finding the Fourth Proportional to 2,689.45, 3,701.33 and 2,275.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,689.45 : 3,701.33 = 2,275.25 : x
2. Step 2: Convert to fraction form
   2,689.45/3,701.33 = 2,275.25/x
3. Step 3: Cross multiply
   2,689.45x = 3,701.33 × 2,275.25
4. Step 4: Simplify right side
   2,689.45x = 8,421,456.77
5. Step 5: Solve for x
   x = 8,421,456.77/2,689.45
6. Step 6: Final answer
   x = 3,131.29