Finding the Fourth Proportional to 1,172.88, 1,618.79 and 675.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,172.88 : 1,618.79 = 675.52 : x
2. Step 2: Convert to fraction form
   1,172.88/1,618.79 = 675.52/x
3. Step 3: Cross multiply
   1,172.88x = 1,618.79 × 675.52
4. Step 4: Simplify right side
   1,172.88x = 1,093,525.02
5. Step 5: Solve for x
   x = 1,093,525.02/1,172.88
6. Step 6: Final answer
   x = 932.34