Finding the Fourth Proportional to 2,309.81, 3,181.97 and 1,837.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,309.81 : 3,181.97 = 1,837.56 : x
2. Step 2: Convert to fraction form
   2,309.81/3,181.97 = 1,837.56/x
3. Step 3: Cross multiply
   2,309.81x = 3,181.97 × 1,837.56
4. Step 4: Simplify right side
   2,309.81x = 5,847,060.79
5. Step 5: Solve for x
   x = 5,847,060.79/2,309.81
6. Step 6: Final answer
   x = 2,531.40