Finding the Fourth Proportional to 1,200.18, 1,656.27 and 676.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200.18 : 1,656.27 = 676.23 : x
2. Step 2: Convert to fraction form
   1,200.18/1,656.27 = 676.23/x
3. Step 3: Cross multiply
   1,200.18x = 1,656.27 × 676.23
4. Step 4: Simplify right side
   1,200.18x = 1,120,019.46
5. Step 5: Solve for x
   x = 1,120,019.46/1,200.18
6. Step 6: Final answer
   x = 933.21