Finding the Fourth Proportional to 3,815.31, 5,722.80 and 1,350.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,815.31 : 5,722.80 = 1,350.15 : x
2. Step 2: Convert to fraction form
   3,815.31/5,722.80 = 1,350.15/x
3. Step 3: Cross multiply
   3,815.31x = 5,722.80 × 1,350.15
4. Step 4: Simplify right side
   3,815.31x = 7,726,638.42
5. Step 5: Solve for x
   x = 7,726,638.42/3,815.31
6. Step 6: Final answer
   x = 2,025.17