Finding the Fourth Proportional to 3,684.93, 5,084.31 and 2,091.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,684.93 : 5,084.31 = 2,091.22 : x
2. Step 2: Convert to fraction form
   3,684.93/5,084.31 = 2,091.22/x
3. Step 3: Cross multiply
   3,684.93x = 5,084.31 × 2,091.22
4. Step 4: Simplify right side
   3,684.93x = 10,632,405.89
5. Step 5: Solve for x
   x = 10,632,405.89/3,684.93
6. Step 6: Final answer
   x = 2,885.38