Finding the Fourth Proportional to 2,686.47, 4,025.15 and 1,300.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,686.47 : 4,025.15 = 1,300.46 : x
2. Step 2: Convert to fraction form
   2,686.47/4,025.15 = 1,300.46/x
3. Step 3: Cross multiply
   2,686.47x = 4,025.15 × 1,300.46
4. Step 4: Simplify right side
   2,686.47x = 5,234,519.94
5. Step 5: Solve for x
   x = 5,234,519.94/2,686.47
6. Step 6: Final answer
   x = 1,948.48