Finding the Fourth Proportional to 3,395.23, 5,091.76 and 1,086.19

Step by Step Solution

1. Step 1: Write the proportion equation
   3,395.23 : 5,091.76 = 1,086.19 : x
2. Step 2: Convert to fraction form
   3,395.23/5,091.76 = 1,086.19/x
3. Step 3: Cross multiply
   3,395.23x = 5,091.76 × 1,086.19
4. Step 4: Simplify right side
   3,395.23x = 5,530,607.42
5. Step 5: Solve for x
   x = 5,530,607.42/3,395.23
6. Step 6: Final answer
   x = 1,628.94