Finding the Fourth Proportional to 1,445.25, 2,168.53 and 704.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445.25 : 2,168.53 = 704.45 : x
2. Step 2: Convert to fraction form
   1,445.25/2,168.53 = 704.45/x
3. Step 3: Cross multiply
   1,445.25x = 2,168.53 × 704.45
4. Step 4: Simplify right side
   1,445.25x = 1,527,628.58
5. Step 5: Solve for x
   x = 1,527,628.58/1,445.25
6. Step 6: Final answer
   x = 1,057.00