Finding the Fourth Proportional to 2,052.56, 3,076.74 and 1,231.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,052.56 : 3,076.74 = 1,231.22 : x
2. Step 2: Convert to fraction form
   2,052.56/3,076.74 = 1,231.22/x
3. Step 3: Cross multiply
   2,052.56x = 3,076.74 × 1,231.22
4. Step 4: Simplify right side
   2,052.56x = 3,788,143.82
5. Step 5: Solve for x
   x = 3,788,143.82/2,052.56
6. Step 6: Final answer
   x = 1,845.57