Finding the Fourth Proportional to 3,858.98, 5,793.30 and 3,654.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,858.98 : 5,793.30 = 3,654.86 : x
2. Step 2: Convert to fraction form
   3,858.98/5,793.30 = 3,654.86/x
3. Step 3: Cross multiply
   3,858.98x = 5,793.30 × 3,654.86
4. Step 4: Simplify right side
   3,858.98x = 21,173,700.44
5. Step 5: Solve for x
   x = 21,173,700.44/3,858.98
6. Step 6: Final answer
   x = 5,486.86