Finding the Fourth Proportional to 1,200.26, 1,656.38 and 676.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200.26 : 1,656.38 = 676.30 : x
2. Step 2: Convert to fraction form
   1,200.26/1,656.38 = 676.30/x
3. Step 3: Cross multiply
   1,200.26x = 1,656.38 × 676.30
4. Step 4: Simplify right side
   1,200.26x = 1,120,209.79
5. Step 5: Solve for x
   x = 1,120,209.79/1,200.26
6. Step 6: Final answer
   x = 933.31