Finding the Fourth Proportional to 1,064.33, 1,595.76 and 447.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,064.33 : 1,595.76 = 447.54 : x
2. Step 2: Convert to fraction form
   1,064.33/1,595.76 = 447.54/x
3. Step 3: Cross multiply
   1,064.33x = 1,595.76 × 447.54
4. Step 4: Simplify right side
   1,064.33x = 714,160.45
5. Step 5: Solve for x
   x = 714,160.45/1,064.33
6. Step 6: Final answer
   x = 670.99