Finding the Fourth Proportional to 2,056.82, 3,086.50 and 1,235.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,056.82 : 3,086.50 = 1,235.30 : x
2. Step 2: Convert to fraction form
   2,056.82/3,086.50 = 1,235.30/x
3. Step 3: Cross multiply
   2,056.82x = 3,086.50 × 1,235.30
4. Step 4: Simplify right side
   2,056.82x = 3,812,753.45
5. Step 5: Solve for x
   x = 3,812,753.45/2,056.82
6. Step 6: Final answer
   x = 1,853.71