Finding the Fourth Proportional to 5,091.09, 7,636.72 and 1,628.34

Step by Step Solution

1. Step 1: Write the proportion equation
   5,091.09 : 7,636.72 = 1,628.34 : x
2. Step 2: Convert to fraction form
   5,091.09/7,636.72 = 1,628.34/x
3. Step 3: Cross multiply
   5,091.09x = 7,636.72 × 1,628.34
4. Step 4: Simplify right side
   5,091.09x = 12,435,176.64
5. Step 5: Solve for x
   x = 12,435,176.64/5,091.09
6. Step 6: Final answer
   x = 2,442.54