Finding the Fourth Proportional to 1,110.88, 1,667.22 and 676.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,110.88 : 1,667.22 = 676.72 : x
2. Step 2: Convert to fraction form
   1,110.88/1,667.22 = 676.72/x
3. Step 3: Cross multiply
   1,110.88x = 1,667.22 × 676.72
4. Step 4: Simplify right side
   1,110.88x = 1,128,241.12
5. Step 5: Solve for x
   x = 1,128,241.12/1,110.88
6. Step 6: Final answer
   x = 1,015.63