Finding the Fourth Proportional to 2,684.31, 4,028.49 and 1,298.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,684.31 : 4,028.49 = 1,298.49 : x
2. Step 2: Convert to fraction form
   2,684.31/4,028.49 = 1,298.49/x
3. Step 3: Cross multiply
   2,684.31x = 4,028.49 × 1,298.49
4. Step 4: Simplify right side
   2,684.31x = 5,230,953.98
5. Step 5: Solve for x
   x = 5,230,953.98/2,684.31
6. Step 6: Final answer
   x = 1,948.71