Finding the Fourth Proportional to 3,654.70, 5,077.29 and 3,620.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,654.70 : 5,077.29 = 3,620.54 : x
2. Step 2: Convert to fraction form
   3,654.70/5,077.29 = 3,620.54/x
3. Step 3: Cross multiply
   3,654.70x = 5,077.29 × 3,620.54
4. Step 4: Simplify right side
   3,654.70x = 18,382,531.54
5. Step 5: Solve for x
   x = 18,382,531.54/3,654.70
6. Step 6: Final answer
   x = 5,029.83