Finding the Fourth Proportional to 1,164.52, 1,606.98 and 667.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,164.52 : 1,606.98 = 667.36 : x
2. Step 2: Convert to fraction form
   1,164.52/1,606.98 = 667.36/x
3. Step 3: Cross multiply
   1,164.52x = 1,606.98 × 667.36
4. Step 4: Simplify right side
   1,164.52x = 1,072,434.17
5. Step 5: Solve for x
   x = 1,072,434.17/1,164.52
6. Step 6: Final answer
   x = 920.92