Finding the Fourth Proportional to 1,256.01, 1,729.24 and 1,078.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,256.01 : 1,729.24 = 1,078.62 : x
2. Step 2: Convert to fraction form
   1,256.01/1,729.24 = 1,078.62/x
3. Step 3: Cross multiply
   1,256.01x = 1,729.24 × 1,078.62
4. Step 4: Simplify right side
   1,256.01x = 1,865,192.85
5. Step 5: Solve for x
   x = 1,865,192.85/1,256.01
6. Step 6: Final answer
   x = 1,485.01