Finding the Fourth Proportional to 5,469.96, 8,191.87 and 2,830.37

Step by Step Solution

1. Step 1: Write the proportion equation
   5,469.96 : 8,191.87 = 2,830.37 : x
2. Step 2: Convert to fraction form
   5,469.96/8,191.87 = 2,830.37/x
3. Step 3: Cross multiply
   5,469.96x = 8,191.87 × 2,830.37
4. Step 4: Simplify right side
   5,469.96x = 23,186,002.61
5. Step 5: Solve for x
   x = 23,186,002.61/5,469.96
6. Step 6: Final answer
   x = 4,238.79