Finding the Fourth Proportional to 3,577.71, 5,365.89 and 1,112.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,577.71 : 5,365.89 = 1,112.43 : x
2. Step 2: Convert to fraction form
   3,577.71/5,365.89 = 1,112.43/x
3. Step 3: Cross multiply
   3,577.71x = 5,365.89 × 1,112.43
4. Step 4: Simplify right side
   3,577.71x = 5,969,177.01
5. Step 5: Solve for x
   x = 5,969,177.01/3,577.71
6. Step 6: Final answer
   x = 1,668.44