Finding the Fourth Proportional to 2,209.41, 3,047.36 and 1,422.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,209.41 : 3,047.36 = 1,422.09 : x
2. Step 2: Convert to fraction form
   2,209.41/3,047.36 = 1,422.09/x
3. Step 3: Cross multiply
   2,209.41x = 3,047.36 × 1,422.09
4. Step 4: Simplify right side
   2,209.41x = 4,333,613.07
5. Step 5: Solve for x
   x = 4,333,613.07/2,209.41
6. Step 6: Final answer
   x = 1,961.43