Finding the Fourth Proportional to 3,654.63, 5,471.58 and 3,308.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,654.63 : 5,471.58 = 3,308.61 : x
2. Step 2: Convert to fraction form
   3,654.63/5,471.58 = 3,308.61/x
3. Step 3: Cross multiply
   3,654.63x = 5,471.58 × 3,308.61
4. Step 4: Simplify right side
   3,654.63x = 18,103,324.30
5. Step 5: Solve for x
   x = 18,103,324.30/3,654.63
6. Step 6: Final answer
   x = 4,953.53