Finding the Fourth Proportional to 3,090.54, 4,636.41 and 1,089.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,090.54 : 4,636.41 = 1,089.42 : x
2. Step 2: Convert to fraction form
   3,090.54/4,636.41 = 1,089.42/x
3. Step 3: Cross multiply
   3,090.54x = 4,636.41 × 1,089.42
4. Step 4: Simplify right side
   3,090.54x = 5,050,997.78
5. Step 5: Solve for x
   x = 5,050,997.78/3,090.54
6. Step 6: Final answer
   x = 1,634.34