Finding the Fourth Proportional to 1,789.49, 2,680.89 and 1,596.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.49 : 2,680.89 = 1,596.45 : x
2. Step 2: Convert to fraction form
   1,789.49/2,680.89 = 1,596.45/x
3. Step 3: Cross multiply
   1,789.49x = 2,680.89 × 1,596.45
4. Step 4: Simplify right side
   1,789.49x = 4,279,906.84
5. Step 5: Solve for x
   x = 4,279,906.84/1,789.49
6. Step 6: Final answer
   x = 2,391.70