Finding the Fourth Proportional to 1,164.44, 1,606.72 and 667.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,164.44 : 1,606.72 = 667.08 : x
2. Step 2: Convert to fraction form
   1,164.44/1,606.72 = 667.08/x
3. Step 3: Cross multiply
   1,164.44x = 1,606.72 × 667.08
4. Step 4: Simplify right side
   1,164.44x = 1,071,810.78
5. Step 5: Solve for x
   x = 1,071,810.78/1,164.44
6. Step 6: Final answer
   x = 920.45