Finding the Fourth Proportional to 2,921.76, 4,374.72 and 1,944.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,921.76 : 4,374.72 = 1,944.72 : x
2. Step 2: Convert to fraction form
   2,921.76/4,374.72 = 1,944.72/x
3. Step 3: Cross multiply
   2,921.76x = 4,374.72 × 1,944.72
4. Step 4: Simplify right side
   2,921.76x = 8,507,605.48
5. Step 5: Solve for x
   x = 8,507,605.48/2,921.76
6. Step 6: Final answer
   x = 2,911.81