Finding the Fourth Proportional to 1,079.06, 1,488.47 and 706.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,079.06 : 1,488.47 = 706.19 : x
2. Step 2: Convert to fraction form
   1,079.06/1,488.47 = 706.19/x
3. Step 3: Cross multiply
   1,079.06x = 1,488.47 × 706.19
4. Step 4: Simplify right side
   1,079.06x = 1,051,142.82
5. Step 5: Solve for x
   x = 1,051,142.82/1,079.06
6. Step 6: Final answer
   x = 974.13