Finding the Fourth Proportional to 1,656.95, 2,286.50 and 910.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,656.95 : 2,286.50 = 910.89 : x
2. Step 2: Convert to fraction form
   1,656.95/2,286.50 = 910.89/x
3. Step 3: Cross multiply
   1,656.95x = 2,286.50 × 910.89
4. Step 4: Simplify right side
   1,656.95x = 2,082,745.43
5. Step 5: Solve for x
   x = 2,082,745.43/1,656.95
6. Step 6: Final answer
   x = 1,256.98