Finding the Fourth Proportional to 2,012.52, 2,757.12 and 1,938.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.52 : 2,757.12 = 1,938.72 : x
2. Step 2: Convert to fraction form
   2,012.52/2,757.12 = 1,938.72/x
3. Step 3: Cross multiply
   2,012.52x = 2,757.12 × 1,938.72
4. Step 4: Simplify right side
   2,012.52x = 5,345,283.69
5. Step 5: Solve for x
   x = 5,345,283.69/2,012.52
6. Step 6: Final answer
   x = 2,656.02