Finding the Fourth Proportional to 2,086.56, 3,130.56 and 2,060.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.56 : 3,130.56 = 2,060.64 : x
2. Step 2: Convert to fraction form
   2,086.56/3,130.56 = 2,060.64/x
3. Step 3: Cross multiply
   2,086.56x = 3,130.56 × 2,060.64
4. Step 4: Simplify right side
   2,086.56x = 6,450,957.16
5. Step 5: Solve for x
   x = 6,450,957.16/2,086.56
6. Step 6: Final answer
   x = 3,091.67