Finding the Fourth Proportional to 3,556.09, 5,333.19 and 1,090.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,556.09 : 5,333.19 = 1,090.72 : x
2. Step 2: Convert to fraction form
   3,556.09/5,333.19 = 1,090.72/x
3. Step 3: Cross multiply
   3,556.09x = 5,333.19 × 1,090.72
4. Step 4: Simplify right side
   3,556.09x = 5,817,017.00
5. Step 5: Solve for x
   x = 5,817,017.00/3,556.09
6. Step 6: Final answer
   x = 1,635.79