Finding the Fourth Proportional to 2,231.38, 3,077.31 and 1,811.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,231.38 : 3,077.31 = 1,811.62 : x
2. Step 2: Convert to fraction form
   2,231.38/3,077.31 = 1,811.62/x
3. Step 3: Cross multiply
   2,231.38x = 3,077.31 × 1,811.62
4. Step 4: Simplify right side
   2,231.38x = 5,574,916.34
5. Step 5: Solve for x
   x = 5,574,916.34/2,231.38
6. Step 6: Final answer
   x = 2,498.42