Finding the Fourth Proportional to 2,945.30, 4,062.83 and 2,531.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,945.30 : 4,062.83 = 2,531.12 : x
2. Step 2: Convert to fraction form
   2,945.30/4,062.83 = 2,531.12/x
3. Step 3: Cross multiply
   2,945.30x = 4,062.83 × 2,531.12
4. Step 4: Simplify right side
   2,945.30x = 10,283,477.30
5. Step 5: Solve for x
   x = 10,283,477.30/2,945.30
6. Step 6: Final answer
   x = 3,491.49