Finding the Fourth Proportional to 1,273.40, 1,907.61 and 605.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,273.40 : 1,907.61 = 605.34 : x
2. Step 2: Convert to fraction form
   1,273.40/1,907.61 = 605.34/x
3. Step 3: Cross multiply
   1,273.40x = 1,907.61 × 605.34
4. Step 4: Simplify right side
   1,273.40x = 1,154,749.61
5. Step 5: Solve for x
   x = 1,154,749.61/1,273.40
6. Step 6: Final answer
   x = 906.83