Finding the Fourth Proportional to 1,104.78, 1,525.06 and 711.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,104.78 : 1,525.06 = 711.94 : x
2. Step 2: Convert to fraction form
   1,104.78/1,525.06 = 711.94/x
3. Step 3: Cross multiply
   1,104.78x = 1,525.06 × 711.94
4. Step 4: Simplify right side
   1,104.78x = 1,085,751.22
5. Step 5: Solve for x
   x = 1,085,751.22/1,104.78
6. Step 6: Final answer
   x = 982.78