Finding the Fourth Proportional to 2,189.46, 3,284.22 and 1,264.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.46 : 3,284.22 = 1,264.34 : x
2. Step 2: Convert to fraction form
   2,189.46/3,284.22 = 1,264.34/x
3. Step 3: Cross multiply
   2,189.46x = 3,284.22 × 1,264.34
4. Step 4: Simplify right side
   2,189.46x = 4,152,370.71
5. Step 5: Solve for x
   x = 4,152,370.71/2,189.46
6. Step 6: Final answer
   x = 1,896.53