Finding the Fourth Proportional to 3,100.52, 4,278.72 and 1,684.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,100.52 : 4,278.72 = 1,684.18 : x
2. Step 2: Convert to fraction form
   3,100.52/4,278.72 = 1,684.18/x
3. Step 3: Cross multiply
   3,100.52x = 4,278.72 × 1,684.18
4. Step 4: Simplify right side
   3,100.52x = 7,206,134.65
5. Step 5: Solve for x
   x = 7,206,134.65/3,100.52
6. Step 6: Final answer
   x = 2,324.17