Finding the Fourth Proportional to 3,142.28, 4,336.00 and 1,816.45

Step by Step Solution

1. Step 1: Write the proportion equation
   3,142.28 : 4,336.00 = 1,816.45 : x
2. Step 2: Convert to fraction form
   3,142.28/4,336.00 = 1,816.45/x
3. Step 3: Cross multiply
   3,142.28x = 4,336.00 × 1,816.45
4. Step 4: Simplify right side
   3,142.28x = 7,876,111.82
5. Step 5: Solve for x
   x = 7,876,111.82/3,142.28
6. Step 6: Final answer
   x = 2,506.49