Finding the Fourth Proportional to 2,972.12, 4,100.54 and 1,712.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,972.12 : 4,100.54 = 1,712.72 : x
2. Step 2: Convert to fraction form
   2,972.12/4,100.54 = 1,712.72/x
3. Step 3: Cross multiply
   2,972.12x = 4,100.54 × 1,712.72
4. Step 4: Simplify right side
   2,972.12x = 7,023,078.56
5. Step 5: Solve for x
   x = 7,023,078.56/2,972.12
6. Step 6: Final answer
   x = 2,362.99