Finding the Fourth Proportional to 5,591.27, 8,390.78 and 2,084.48

Step by Step Solution

1. Step 1: Write the proportion equation
   5,591.27 : 8,390.78 = 2,084.48 : x
2. Step 2: Convert to fraction form
   5,591.27/8,390.78 = 2,084.48/x
3. Step 3: Cross multiply
   5,591.27x = 8,390.78 × 2,084.48
4. Step 4: Simplify right side
   5,591.27x = 17,490,360.72
5. Step 5: Solve for x
   x = 17,490,360.72/5,591.27
6. Step 6: Final answer
   x = 3,128.16