Finding the Fourth Proportional to 1,167.67, 1,610.04 and 872.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,167.67 : 1,610.04 = 872.43 : x
2. Step 2: Convert to fraction form
   1,167.67/1,610.04 = 872.43/x
3. Step 3: Cross multiply
   1,167.67x = 1,610.04 × 872.43
4. Step 4: Simplify right side
   1,167.67x = 1,404,647.20
5. Step 5: Solve for x
   x = 1,404,647.20/1,167.67
6. Step 6: Final answer
   x = 1,202.95