Finding the Fourth Proportional to 2,171.83, 2,996.94 and 1,227.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171.83 : 2,996.94 = 1,227.71 : x
2. Step 2: Convert to fraction form
   2,171.83/2,996.94 = 1,227.71/x
3. Step 3: Cross multiply
   2,171.83x = 2,996.94 × 1,227.71
4. Step 4: Simplify right side
   2,171.83x = 3,679,373.21
5. Step 5: Solve for x
   x = 3,679,373.21/2,171.83
6. Step 6: Final answer
   x = 1,694.13