Finding the Fourth Proportional to 1,496.72, 2,064.20 and 907.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,496.72 : 2,064.20 = 907.28 : x
2. Step 2: Convert to fraction form
   1,496.72/2,064.20 = 907.28/x
3. Step 3: Cross multiply
   1,496.72x = 2,064.20 × 907.28
4. Step 4: Simplify right side
   1,496.72x = 1,872,807.38
5. Step 5: Solve for x
   x = 1,872,807.38/1,496.72
6. Step 6: Final answer
   x = 1,251.27