Finding the Fourth Proportional to 1,488.83, 2,233.34 and 448.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.83 : 2,233.34 = 448.74 : x
2. Step 2: Convert to fraction form
   1,488.83/2,233.34 = 448.74/x
3. Step 3: Cross multiply
   1,488.83x = 2,233.34 × 448.74
4. Step 4: Simplify right side
   1,488.83x = 1,002,177.82
5. Step 5: Solve for x
   x = 1,002,177.82/1,488.83
6. Step 6: Final answer
   x = 673.13