Finding the Fourth Proportional to 3,996.06, 5,989.59 and 1,913.19

Step by Step Solution

1. Step 1: Write the proportion equation
   3,996.06 : 5,989.59 = 1,913.19 : x
2. Step 2: Convert to fraction form
   3,996.06/5,989.59 = 1,913.19/x
3. Step 3: Cross multiply
   3,996.06x = 5,989.59 × 1,913.19
4. Step 4: Simplify right side
   3,996.06x = 11,459,223.69
5. Step 5: Solve for x
   x = 11,459,223.69/3,996.06
6. Step 6: Final answer
   x = 2,867.63