Finding the Fourth Proportional to 1,889.22, 2,834.31 and 1,109.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,889.22 : 2,834.31 = 1,109.88 : x
2. Step 2: Convert to fraction form
   1,889.22/2,834.31 = 1,109.88/x
3. Step 3: Cross multiply
   1,889.22x = 2,834.31 × 1,109.88
4. Step 4: Simplify right side
   1,889.22x = 3,145,751.38
5. Step 5: Solve for x
   x = 3,145,751.38/1,889.22
6. Step 6: Final answer
   x = 1,665.10