Finding the Fourth Proportional to 2,189.81, 3,285.73 and 1,094.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.81 : 3,285.73 = 1,094.25 : x
2. Step 2: Convert to fraction form
   2,189.81/3,285.73 = 1,094.25/x
3. Step 3: Cross multiply
   2,189.81x = 3,285.73 × 1,094.25
4. Step 4: Simplify right side
   2,189.81x = 3,595,390.89
5. Step 5: Solve for x
   x = 3,595,390.89/2,189.81
6. Step 6: Final answer
   x = 1,641.88