Finding the Fourth Proportional to 1,656.69, 2,286.27 and 910.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,656.69 : 2,286.27 = 910.69 : x
2. Step 2: Convert to fraction form
   1,656.69/2,286.27 = 910.69/x
3. Step 3: Cross multiply
   1,656.69x = 2,286.27 × 910.69
4. Step 4: Simplify right side
   1,656.69x = 2,082,090.37
5. Step 5: Solve for x
   x = 2,082,090.37/1,656.69
6. Step 6: Final answer
   x = 1,256.78