Finding the Fourth Proportional to 2,209.25, 3,314.01 and 670.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,209.25 : 3,314.01 = 670.25 : x
2. Step 2: Convert to fraction form
   2,209.25/3,314.01 = 670.25/x
3. Step 3: Cross multiply
   2,209.25x = 3,314.01 × 670.25
4. Step 4: Simplify right side
   2,209.25x = 2,221,215.20
5. Step 5: Solve for x
   x = 2,221,215.20/2,209.25
6. Step 6: Final answer
   x = 1,005.42