Finding the Fourth Proportional to 3,658.34, 5,048.34 and 2,086.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,658.34 : 5,048.34 = 2,086.40 : x
2. Step 2: Convert to fraction form
   3,658.34/5,048.34 = 2,086.40/x
3. Step 3: Cross multiply
   3,658.34x = 5,048.34 × 2,086.40
4. Step 4: Simplify right side
   3,658.34x = 10,532,856.58
5. Step 5: Solve for x
   x = 10,532,856.58/3,658.34
6. Step 6: Final answer
   x = 2,879.14