Finding the Fourth Proportional to 3,551.08, 5,326.60 and 1,085.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,551.08 : 5,326.60 = 1,085.89 : x
2. Step 2: Convert to fraction form
   3,551.08/5,326.60 = 1,085.89/x
3. Step 3: Cross multiply
   3,551.08x = 5,326.60 × 1,085.89
4. Step 4: Simplify right side
   3,551.08x = 5,784,105.62
5. Step 5: Solve for x
   x = 5,784,105.62/3,551.08
6. Step 6: Final answer
   x = 1,628.83