Finding the Fourth Proportional to 2,309.47, 3,186.06 and 1,563.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,309.47 : 3,186.06 = 1,563.16 : x
2. Step 2: Convert to fraction form
   2,309.47/3,186.06 = 1,563.16/x
3. Step 3: Cross multiply
   2,309.47x = 3,186.06 × 1,563.16
4. Step 4: Simplify right side
   2,309.47x = 4,980,321.55
5. Step 5: Solve for x
   x = 4,980,321.55/2,309.47
6. Step 6: Final answer
   x = 2,156.48