Finding the Fourth Proportional to 2,189.43, 3,281.72 and 1,094.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.43 : 3,281.72 = 1,094.72 : x
2. Step 2: Convert to fraction form
   2,189.43/3,281.72 = 1,094.72/x
3. Step 3: Cross multiply
   2,189.43x = 3,281.72 × 1,094.72
4. Step 4: Simplify right side
   2,189.43x = 3,592,542.64
5. Step 5: Solve for x
   x = 3,592,542.64/2,189.43
6. Step 6: Final answer
   x = 1,640.86