Finding the Fourth Proportional to 1,184.52, 1,634.71 and 660.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,184.52 : 1,634.71 = 660.55 : x
2. Step 2: Convert to fraction form
   1,184.52/1,634.71 = 660.55/x
3. Step 3: Cross multiply
   1,184.52x = 1,634.71 × 660.55
4. Step 4: Simplify right side
   1,184.52x = 1,079,796.21
5. Step 5: Solve for x
   x = 1,079,796.21/1,184.52
6. Step 6: Final answer
   x = 911.59