Finding the Fourth Proportional to 3,456.32, 5,185.98 and 1,812.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,456.32 : 5,185.98 = 1,812.47 : x
2. Step 2: Convert to fraction form
   3,456.32/5,185.98 = 1,812.47/x
3. Step 3: Cross multiply
   3,456.32x = 5,185.98 × 1,812.47
4. Step 4: Simplify right side
   3,456.32x = 9,399,407.24
5. Step 5: Solve for x
   x = 9,399,407.24/3,456.32
6. Step 6: Final answer
   x = 2,719.49