Finding the Fourth Proportional to 3,553.56, 5,329.98 and 1,088.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,553.56 : 5,329.98 = 1,088.40 : x
2. Step 2: Convert to fraction form
   3,553.56/5,329.98 = 1,088.40/x
3. Step 3: Cross multiply
   3,553.56x = 5,329.98 × 1,088.40
4. Step 4: Simplify right side
   3,553.56x = 5,801,150.23
5. Step 5: Solve for x
   x = 5,801,150.23/3,553.56
6. Step 6: Final answer
   x = 1,632.49