Finding the Fourth Proportional to 1,200.48, 1,656.60 and 676.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200.48 : 1,656.60 = 676.52 : x
2. Step 2: Convert to fraction form
   1,200.48/1,656.60 = 676.52/x
3. Step 3: Cross multiply
   1,200.48x = 1,656.60 × 676.52
4. Step 4: Simplify right side
   1,200.48x = 1,120,723.03
5. Step 5: Solve for x
   x = 1,120,723.03/1,200.48
6. Step 6: Final answer
   x = 933.56