Finding the Fourth Proportional to 1,274.49, 1,910.41 and 656.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,274.49 : 1,910.41 = 656.82 : x
2. Step 2: Convert to fraction form
   1,274.49/1,910.41 = 656.82/x
3. Step 3: Cross multiply
   1,274.49x = 1,910.41 × 656.82
4. Step 4: Simplify right side
   1,274.49x = 1,254,795.50
5. Step 5: Solve for x
   x = 1,254,795.50/1,274.49
6. Step 6: Final answer
   x = 984.55