Finding the Fourth Proportional to 3,456.38, 5,184.98 and 1,147.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,456.38 : 5,184.98 = 1,147.88 : x
2. Step 2: Convert to fraction form
   3,456.38/5,184.98 = 1,147.88/x
3. Step 3: Cross multiply
   3,456.38x = 5,184.98 × 1,147.88
4. Step 4: Simplify right side
   3,456.38x = 5,951,703.18
5. Step 5: Solve for x
   x = 5,951,703.18/3,456.38
6. Step 6: Final answer
   x = 1,721.95