Finding the Fourth Proportional to 2,111.42, 2,914.38 and 1,227.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.42 : 2,914.38 = 1,227.58 : x
2. Step 2: Convert to fraction form
   2,111.42/2,914.38 = 1,227.58/x
3. Step 3: Cross multiply
   2,111.42x = 2,914.38 × 1,227.58
4. Step 4: Simplify right side
   2,111.42x = 3,577,627.31
5. Step 5: Solve for x
   x = 3,577,627.31/2,111.42
6. Step 6: Final answer
   x = 1,694.42