Finding the Fourth Proportional to 3,554.91, 5,332.71 and 1,089.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,554.91 : 5,332.71 = 1,089.30 : x
2. Step 2: Convert to fraction form
   3,554.91/5,332.71 = 1,089.30/x
3. Step 3: Cross multiply
   3,554.91x = 5,332.71 × 1,089.30
4. Step 4: Simplify right side
   3,554.91x = 5,808,912.03
5. Step 5: Solve for x
   x = 5,808,912.03/3,554.91
6. Step 6: Final answer
   x = 1,634.05