Finding the Fourth Proportional to 1,198.52, 1,653.93 and 667.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,198.52 : 1,653.93 = 667.41 : x
2. Step 2: Convert to fraction form
   1,198.52/1,653.93 = 667.41/x
3. Step 3: Cross multiply
   1,198.52x = 1,653.93 × 667.41
4. Step 4: Simplify right side
   1,198.52x = 1,103,841.15
5. Step 5: Solve for x
   x = 1,103,841.15/1,198.52
6. Step 6: Final answer
   x = 921.00