Finding the Fourth Proportional to 2,112.06, 2,914.62 and 1,227.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112.06 : 2,914.62 = 1,227.87 : x
2. Step 2: Convert to fraction form
   2,112.06/2,914.62 = 1,227.87/x
3. Step 3: Cross multiply
   2,112.06x = 2,914.62 × 1,227.87
4. Step 4: Simplify right side
   2,112.06x = 3,578,774.46
5. Step 5: Solve for x
   x = 3,578,774.46/2,112.06
6. Step 6: Final answer
   x = 1,694.45