Finding the Fourth Proportional to 1,789.16, 2,676.71 and 1,581.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.16 : 2,676.71 = 1,581.39 : x
2. Step 2: Convert to fraction form
   1,789.16/2,676.71 = 1,581.39/x
3. Step 3: Cross multiply
   1,789.16x = 2,676.71 × 1,581.39
4. Step 4: Simplify right side
   1,789.16x = 4,232,926.38
5. Step 5: Solve for x
   x = 4,232,926.38/1,789.16
6. Step 6: Final answer
   x = 2,365.88