Finding the Fourth Proportional to 3,189.42, 4,783.74 and 1,109.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,189.42 : 4,783.74 = 1,109.46 : x
2. Step 2: Convert to fraction form
   3,189.42/4,783.74 = 1,109.46/x
3. Step 3: Cross multiply
   3,189.42x = 4,783.74 × 1,109.46
4. Step 4: Simplify right side
   3,189.42x = 5,307,368.18
5. Step 5: Solve for x
   x = 5,307,368.18/3,189.42
6. Step 6: Final answer
   x = 1,664.05