Finding the Fourth Proportional to 3,933.60, 5,903.84 and 2,086.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,933.60 : 5,903.84 = 2,086.04 : x
2. Step 2: Convert to fraction form
   3,933.60/5,903.84 = 2,086.04/x
3. Step 3: Cross multiply
   3,933.60x = 5,903.84 × 2,086.04
4. Step 4: Simplify right side
   3,933.60x = 12,315,646.39
5. Step 5: Solve for x
   x = 12,315,646.39/3,933.60
6. Step 6: Final answer
   x = 3,130.88