Finding the Fourth Proportional to 1,079.73, 1,488.56 and 706.11

Step by Step Solution

1. Step 1: Write the proportion equation
   1,079.73 : 1,488.56 = 706.11 : x
2. Step 2: Convert to fraction form
   1,079.73/1,488.56 = 706.11/x
3. Step 3: Cross multiply
   1,079.73x = 1,488.56 × 706.11
4. Step 4: Simplify right side
   1,079.73x = 1,051,087.10
5. Step 5: Solve for x
   x = 1,051,087.10/1,079.73
6. Step 6: Final answer
   x = 973.48