Finding the Fourth Proportional to 1,133.88, 1,698.72 and 969.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,133.88 : 1,698.72 = 969.86 : x
2. Step 2: Convert to fraction form
   1,133.88/1,698.72 = 969.86/x
3. Step 3: Cross multiply
   1,133.88x = 1,698.72 × 969.86
4. Step 4: Simplify right side
   1,133.88x = 1,647,520.58
5. Step 5: Solve for x
   x = 1,647,520.58/1,133.88
6. Step 6: Final answer
   x = 1,452.99