Finding the Fourth Proportional to 3,141.42, 4,335.17 and 1,815.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,141.42 : 4,335.17 = 1,815.12 : x
2. Step 2: Convert to fraction form
   3,141.42/4,335.17 = 1,815.12/x
3. Step 3: Cross multiply
   3,141.42x = 4,335.17 × 1,815.12
4. Step 4: Simplify right side
   3,141.42x = 7,868,844.69
5. Step 5: Solve for x
   x = 7,868,844.69/3,141.42
6. Step 6: Final answer
   x = 2,504.87