Finding the Fourth Proportional to 3,484.89, 5,228.69 and 2,099.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,484.89 : 5,228.69 = 2,099.25 : x
2. Step 2: Convert to fraction form
   3,484.89/5,228.69 = 2,099.25/x
3. Step 3: Cross multiply
   3,484.89x = 5,228.69 × 2,099.25
4. Step 4: Simplify right side
   3,484.89x = 10,976,316.99
5. Step 5: Solve for x
   x = 10,976,316.99/3,484.89
6. Step 6: Final answer
   x = 3,149.69