Finding the Fourth Proportional to 1,069.83, 1,469.25 and 993.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,069.83 : 1,469.25 = 993.69 : x
2. Step 2: Convert to fraction form
   1,069.83/1,469.25 = 993.69/x
3. Step 3: Cross multiply
   1,069.83x = 1,469.25 × 993.69
4. Step 4: Simplify right side
   1,069.83x = 1,459,979.03
5. Step 5: Solve for x
   x = 1,459,979.03/1,069.83
6. Step 6: Final answer
   x = 1,364.68