Finding the Fourth Proportional to 3,189.69, 4,784.27 and 1,109.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,189.69 : 4,784.27 = 1,109.34 : x
2. Step 2: Convert to fraction form
   3,189.69/4,784.27 = 1,109.34/x
3. Step 3: Cross multiply
   3,189.69x = 4,784.27 × 1,109.34
4. Step 4: Simplify right side
   3,189.69x = 5,307,376.54
5. Step 5: Solve for x
   x = 5,307,376.54/3,189.69
6. Step 6: Final answer
   x = 1,663.92