Finding the Fourth Proportional to 5,456.67, 8,185.61 and 1,947.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,456.67 : 8,185.61 = 1,947.50 : x
2. Step 2: Convert to fraction form
   5,456.67/8,185.61 = 1,947.50/x
3. Step 3: Cross multiply
   5,456.67x = 8,185.61 × 1,947.50
4. Step 4: Simplify right side
   5,456.67x = 15,941,475.48
5. Step 5: Solve for x
   x = 15,941,475.48/5,456.67
6. Step 6: Final answer
   x = 2,921.47