Finding the Fourth Proportional to 2,012.10, 3,018.42 and 625.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.10 : 3,018.42 = 625.38 : x
2. Step 2: Convert to fraction form
   2,012.10/3,018.42 = 625.38/x
3. Step 3: Cross multiply
   2,012.10x = 3,018.42 × 625.38
4. Step 4: Simplify right side
   2,012.10x = 1,887,659.50
5. Step 5: Solve for x
   x = 1,887,659.50/2,012.10
6. Step 6: Final answer
   x = 938.15