Finding the Fourth Proportional to 2,931.52, 4,046.61 and 1,938.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,931.52 : 4,046.61 = 1,938.15 : x
2. Step 2: Convert to fraction form
   2,931.52/4,046.61 = 1,938.15/x
3. Step 3: Cross multiply
   2,931.52x = 4,046.61 × 1,938.15
4. Step 4: Simplify right side
   2,931.52x = 7,842,944.92
5. Step 5: Solve for x
   x = 7,842,944.92/2,931.52
6. Step 6: Final answer
   x = 2,675.39