Finding the Fourth Proportional to 2,112.03, 2,914.71 and 1,227.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112.03 : 2,914.71 = 1,227.63 : x
2. Step 2: Convert to fraction form
   2,112.03/2,914.71 = 1,227.63/x
3. Step 3: Cross multiply
   2,112.03x = 2,914.71 × 1,227.63
4. Step 4: Simplify right side
   2,112.03x = 3,578,185.44
5. Step 5: Solve for x
   x = 3,578,185.44/2,112.03
6. Step 6: Final answer
   x = 1,694.19