Finding the Fourth Proportional to 3,150.20, 4,347.50 and 2,086.13

Step by Step Solution

1. Step 1: Write the proportion equation
   3,150.20 : 4,347.50 = 2,086.13 : x
2. Step 2: Convert to fraction form
   3,150.20/4,347.50 = 2,086.13/x
3. Step 3: Cross multiply
   3,150.20x = 4,347.50 × 2,086.13
4. Step 4: Simplify right side
   3,150.20x = 9,069,418.01
5. Step 5: Solve for x
   x = 9,069,418.01/3,150.20
6. Step 6: Final answer
   x = 2,879.00