Finding the Fourth Proportional to 1,579.83, 2,180.18 and 907.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,579.83 : 2,180.18 = 907.46 : x
2. Step 2: Convert to fraction form
   1,579.83/2,180.18 = 907.46/x
3. Step 3: Cross multiply
   1,579.83x = 2,180.18 × 907.46
4. Step 4: Simplify right side
   1,579.83x = 1,978,426.14
5. Step 5: Solve for x
   x = 1,978,426.14/1,579.83
6. Step 6: Final answer
   x = 1,252.30