Finding the Fourth Proportional to 2,412.12, 3,617.78 and 1,095.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,412.12 : 3,617.78 = 1,095.47 : x
2. Step 2: Convert to fraction form
   2,412.12/3,617.78 = 1,095.47/x
3. Step 3: Cross multiply
   2,412.12x = 3,617.78 × 1,095.47
4. Step 4: Simplify right side
   2,412.12x = 3,963,145.89
5. Step 5: Solve for x
   x = 3,963,145.89/2,412.12
6. Step 6: Final answer
   x = 1,643.01