Finding the Fourth Proportional to 1,077.18, 1,485.98 and 704.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,077.18 : 1,485.98 = 704.17 : x
2. Step 2: Convert to fraction form
   1,077.18/1,485.98 = 704.17/x
3. Step 3: Cross multiply
   1,077.18x = 1,485.98 × 704.17
4. Step 4: Simplify right side
   1,077.18x = 1,046,383.51
5. Step 5: Solve for x
   x = 1,046,383.51/1,077.18
6. Step 6: Final answer
   x = 971.41