Finding the Fourth Proportional to 1,200.27, 1,656.36 and 676.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200.27 : 1,656.36 = 676.30 : x
2. Step 2: Convert to fraction form
   1,200.27/1,656.36 = 676.30/x
3. Step 3: Cross multiply
   1,200.27x = 1,656.36 × 676.30
4. Step 4: Simplify right side
   1,200.27x = 1,120,196.27
5. Step 5: Solve for x
   x = 1,120,196.27/1,200.27
6. Step 6: Final answer
   x = 933.29