Finding the Fourth Proportional to 3,654.81, 5,042.52 and 2,591.73

Step by Step Solution

1. Step 1: Write the proportion equation
   3,654.81 : 5,042.52 = 2,591.73 : x
2. Step 2: Convert to fraction form
   3,654.81/5,042.52 = 2,591.73/x
3. Step 3: Cross multiply
   3,654.81x = 5,042.52 × 2,591.73
4. Step 4: Simplify right side
   3,654.81x = 13,068,850.36
5. Step 5: Solve for x
   x = 13,068,850.36/3,654.81
6. Step 6: Final answer
   x = 3,575.79