Finding the Fourth Proportional to 2,111.42, 2,914.56 and 1,889.97

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.42 : 2,914.56 = 1,889.97 : x
2. Step 2: Convert to fraction form
   2,111.42/2,914.56 = 1,889.97/x
3. Step 3: Cross multiply
   2,111.42x = 2,914.56 × 1,889.97
4. Step 4: Simplify right side
   2,111.42x = 5,508,430.96
5. Step 5: Solve for x
   x = 5,508,430.96/2,111.42
6. Step 6: Final answer
   x = 2,608.88