Finding the Fourth Proportional to 3,142.69, 4,336.58 and 1,816.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,142.69 : 4,336.58 = 1,816.82 : x
2. Step 2: Convert to fraction form
   3,142.69/4,336.58 = 1,816.82/x
3. Step 3: Cross multiply
   3,142.69x = 4,336.58 × 1,816.82
4. Step 4: Simplify right side
   3,142.69x = 7,878,785.28
5. Step 5: Solve for x
   x = 7,878,785.28/3,142.69
6. Step 6: Final answer
   x = 2,507.02