Finding the Fourth Proportional to 3,719.06, 5,581.83 and 1,772.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,719.06 : 5,581.83 = 1,772.18 : x
2. Step 2: Convert to fraction form
   3,719.06/5,581.83 = 1,772.18/x
3. Step 3: Cross multiply
   3,719.06x = 5,581.83 × 1,772.18
4. Step 4: Simplify right side
   3,719.06x = 9,892,007.49
5. Step 5: Solve for x
   x = 9,892,007.49/3,719.06
6. Step 6: Final answer
   x = 2,659.81