Finding the Fourth Proportional to 3,818.69, 5,715.26 and 2,174.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,818.69 : 5,715.26 = 2,174.79 : x
2. Step 2: Convert to fraction form
   3,818.69/5,715.26 = 2,174.79/x
3. Step 3: Cross multiply
   3,818.69x = 5,715.26 × 2,174.79
4. Step 4: Simplify right side
   3,818.69x = 12,429,490.30
5. Step 5: Solve for x
   x = 12,429,490.30/3,818.69
6. Step 6: Final answer
   x = 3,254.91