Finding the Fourth Proportional to 2,189.16, 3,281.79 and 955.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.16 : 3,281.79 = 955.62 : x
2. Step 2: Convert to fraction form
   2,189.16/3,281.79 = 955.62/x
3. Step 3: Cross multiply
   2,189.16x = 3,281.79 × 955.62
4. Step 4: Simplify right side
   2,189.16x = 3,136,144.16
5. Step 5: Solve for x
   x = 3,136,144.16/2,189.16
6. Step 6: Final answer
   x = 1,432.58