Finding the Fourth Proportional to 3,100.47, 4,278.69 and 1,684.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,100.47 : 4,278.69 = 1,684.16 : x
2. Step 2: Convert to fraction form
   3,100.47/4,278.69 = 1,684.16/x
3. Step 3: Cross multiply
   3,100.47x = 4,278.69 × 1,684.16
4. Step 4: Simplify right side
   3,100.47x = 7,205,998.55
5. Step 5: Solve for x
   x = 7,205,998.55/3,100.47
6. Step 6: Final answer
   x = 2,324.16