Finding the Fourth Proportional to 3,555.07, 5,333.56 and 1,089.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,555.07 : 5,333.56 = 1,089.83 : x
2. Step 2: Convert to fraction form
   3,555.07/5,333.56 = 1,089.83/x
3. Step 3: Cross multiply
   3,555.07x = 5,333.56 × 1,089.83
4. Step 4: Simplify right side
   3,555.07x = 5,812,684.30
5. Step 5: Solve for x
   x = 5,812,684.30/3,555.07
6. Step 6: Final answer
   x = 1,635.04