Finding the Fourth Proportional to 1,579.82, 2,180.16 and 907.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,579.82 : 2,180.16 = 907.45 : x
2. Step 2: Convert to fraction form
   1,579.82/2,180.16 = 907.45/x
3. Step 3: Cross multiply
   1,579.82x = 2,180.16 × 907.45
4. Step 4: Simplify right side
   1,579.82x = 1,978,383.01
5. Step 5: Solve for x
   x = 1,978,383.01/1,579.82
6. Step 6: Final answer
   x = 1,252.28