Finding the Fourth Proportional to 3,484.89, 5,223.81 and 2,091.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,484.89 : 5,223.81 = 2,091.71 : x
2. Step 2: Convert to fraction form
   3,484.89/5,223.81 = 2,091.71/x
3. Step 3: Cross multiply
   3,484.89x = 5,223.81 × 2,091.71
4. Step 4: Simplify right side
   3,484.89x = 10,926,669.50
5. Step 5: Solve for x
   x = 10,926,669.50/3,484.89
6. Step 6: Final answer
   x = 3,135.44