Finding the Fourth Proportional to 1,656.63, 2,286.29 and 910.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,656.63 : 2,286.29 = 910.73 : x
2. Step 2: Convert to fraction form
   1,656.63/2,286.29 = 910.73/x
3. Step 3: Cross multiply
   1,656.63x = 2,286.29 × 910.73
4. Step 4: Simplify right side
   1,656.63x = 2,082,191.89
5. Step 5: Solve for x
   x = 2,082,191.89/1,656.63
6. Step 6: Final answer
   x = 1,256.89