Finding the Fourth Proportional to 1,079.01, 1,614.41 and 667.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,079.01 : 1,614.41 = 667.12 : x
2. Step 2: Convert to fraction form
   1,079.01/1,614.41 = 667.12/x
3. Step 3: Cross multiply
   1,079.01x = 1,614.41 × 667.12
4. Step 4: Simplify right side
   1,079.01x = 1,077,005.20
5. Step 5: Solve for x
   x = 1,077,005.20/1,079.01
6. Step 6: Final answer
   x = 998.14