Finding the Fourth Proportional to 3,556.34, 5,334.72 and 1,091.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,556.34 : 5,334.72 = 1,091.18 : x
2. Step 2: Convert to fraction form
   3,556.34/5,334.72 = 1,091.18/x
3. Step 3: Cross multiply
   3,556.34x = 5,334.72 × 1,091.18
4. Step 4: Simplify right side
   3,556.34x = 5,821,149.01
5. Step 5: Solve for x
   x = 5,821,149.01/3,556.34
6. Step 6: Final answer
   x = 1,636.84