Finding the Fourth Proportional to 1,076.58, 1,485.59 and 704.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,076.58 : 1,485.59 = 704.22 : x
2. Step 2: Convert to fraction form
   1,076.58/1,485.59 = 704.22/x
3. Step 3: Cross multiply
   1,076.58x = 1,485.59 × 704.22
4. Step 4: Simplify right side
   1,076.58x = 1,046,178.67
5. Step 5: Solve for x
   x = 1,046,178.67/1,076.58
6. Step 6: Final answer
   x = 971.76