Finding the Fourth Proportional to 2,206.38, 3,309.98 and 907.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,206.38 : 3,309.98 = 907.14 : x
2. Step 2: Convert to fraction form
   2,206.38/3,309.98 = 907.14/x
3. Step 3: Cross multiply
   2,206.38x = 3,309.98 × 907.14
4. Step 4: Simplify right side
   2,206.38x = 3,002,610.72
5. Step 5: Solve for x
   x = 3,002,610.72/2,206.38
6. Step 6: Final answer
   x = 1,360.88