Finding the Fourth Proportional to 3,099.31, 4,649.47 and 1,018.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,099.31 : 4,649.47 = 1,018.71 : x
2. Step 2: Convert to fraction form
   3,099.31/4,649.47 = 1,018.71/x
3. Step 3: Cross multiply
   3,099.31x = 4,649.47 × 1,018.71
4. Step 4: Simplify right side
   3,099.31x = 4,736,456.49
5. Step 5: Solve for x
   x = 4,736,456.49/3,099.31
6. Step 6: Final answer
   x = 1,528.23