Finding the Fourth Proportional to 1,629.07, 2,247.59 and 920.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,629.07 : 2,247.59 = 920.83 : x
2. Step 2: Convert to fraction form
   1,629.07/2,247.59 = 920.83/x
3. Step 3: Cross multiply
   1,629.07x = 2,247.59 × 920.83
4. Step 4: Simplify right side
   1,629.07x = 2,069,648.30
5. Step 5: Solve for x
   x = 2,069,648.30/1,629.07
6. Step 6: Final answer
   x = 1,270.45