Finding the Fourth Proportional to 3,213.82, 4,819.47 and 1,133.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,213.82 : 4,819.47 = 1,133.38 : x
2. Step 2: Convert to fraction form
   3,213.82/4,819.47 = 1,133.38/x
3. Step 3: Cross multiply
   3,213.82x = 4,819.47 × 1,133.38
4. Step 4: Simplify right side
   3,213.82x = 5,462,290.91
5. Step 5: Solve for x
   x = 5,462,290.91/3,213.82
6. Step 6: Final answer
   x = 1,699.63