Finding the Fourth Proportional to 2,060.56, 3,090.96 and 906.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,060.56 : 3,090.96 = 906.16 : x
2. Step 2: Convert to fraction form
   2,060.56/3,090.96 = 906.16/x
3. Step 3: Cross multiply
   2,060.56x = 3,090.96 × 906.16
4. Step 4: Simplify right side
   2,060.56x = 2,800,904.31
5. Step 5: Solve for x
   x = 2,800,904.31/2,060.56
6. Step 6: Final answer
   x = 1,359.29