Finding the Fourth Proportional to 1,200.05, 1,656.06 and 676.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200.05 : 1,656.06 = 676.08 : x
2. Step 2: Convert to fraction form
   1,200.05/1,656.06 = 676.08/x
3. Step 3: Cross multiply
   1,200.05x = 1,656.06 × 676.08
4. Step 4: Simplify right side
   1,200.05x = 1,119,629.04
5. Step 5: Solve for x
   x = 1,119,629.04/1,200.05
6. Step 6: Final answer
   x = 932.99