Finding the Fourth Proportional to 2,289.56, 3,161.52 and 1,702.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,289.56 : 3,161.52 = 1,702.72 : x
2. Step 2: Convert to fraction form
   2,289.56/3,161.52 = 1,702.72/x
3. Step 3: Cross multiply
   2,289.56x = 3,161.52 × 1,702.72
4. Step 4: Simplify right side
   2,289.56x = 5,383,159.01
5. Step 5: Solve for x
   x = 5,383,159.01/2,289.56
6. Step 6: Final answer
   x = 2,351.18