Finding the Fourth Proportional to 2,231.15, 3,079.32 and 1,857.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,231.15 : 3,079.32 = 1,857.53 : x
2. Step 2: Convert to fraction form
   2,231.15/3,079.32 = 1,857.53/x
3. Step 3: Cross multiply
   2,231.15x = 3,079.32 × 1,857.53
4. Step 4: Simplify right side
   2,231.15x = 5,719,930.01
5. Step 5: Solve for x
   x = 5,719,930.01/2,231.15
6. Step 6: Final answer
   x = 2,563.67