Finding the Fourth Proportional to 1,602.94, 2,404.50 and 448.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,602.94 : 2,404.50 = 448.78 : x
2. Step 2: Convert to fraction form
   1,602.94/2,404.50 = 448.78/x
3. Step 3: Cross multiply
   1,602.94x = 2,404.50 × 448.78
4. Step 4: Simplify right side
   1,602.94x = 1,079,083.82
5. Step 5: Solve for x
   x = 1,079,083.82/1,602.94
6. Step 6: Final answer
   x = 673.19