Finding the Fourth Proportional to 3,931.72, 5,896.14 and 1,298.73

Step by Step Solution

1. Step 1: Write the proportion equation
   3,931.72 : 5,896.14 = 1,298.73 : x
2. Step 2: Convert to fraction form
   3,931.72/5,896.14 = 1,298.73/x
3. Step 3: Cross multiply
   3,931.72x = 5,896.14 × 1,298.73
4. Step 4: Simplify right side
   3,931.72x = 7,657,493.90
5. Step 5: Solve for x
   x = 7,657,493.90/3,931.72
6. Step 6: Final answer
   x = 1,947.62