Finding the Fourth Proportional to 5,191.72, 7,164.86 and 2,833.88

Step by Step Solution

1. Step 1: Write the proportion equation
   5,191.72 : 7,164.86 = 2,833.88 : x
2. Step 2: Convert to fraction form
   5,191.72/7,164.86 = 2,833.88/x
3. Step 3: Cross multiply
   5,191.72x = 7,164.86 × 2,833.88
4. Step 4: Simplify right side
   5,191.72x = 20,304,303.46
5. Step 5: Solve for x
   x = 20,304,303.46/5,191.72
6. Step 6: Final answer
   x = 3,910.90