Finding the Fourth Proportional to 3,555.38, 5,333.89 and 1,090.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,555.38 : 5,333.89 = 1,090.56 : x
2. Step 2: Convert to fraction form
   3,555.38/5,333.89 = 1,090.56/x
3. Step 3: Cross multiply
   3,555.38x = 5,333.89 × 1,090.56
4. Step 4: Simplify right side
   3,555.38x = 5,816,927.08
5. Step 5: Solve for x
   x = 5,816,927.08/3,555.38
6. Step 6: Final answer
   x = 1,636.09