Finding the Fourth Proportional to 1,283.83, 1,771.69 and 694.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,283.83 : 1,771.69 = 694.37 : x
2. Step 2: Convert to fraction form
   1,283.83/1,771.69 = 694.37/x
3. Step 3: Cross multiply
   1,283.83x = 1,771.69 × 694.37
4. Step 4: Simplify right side
   1,283.83x = 1,230,196.06
5. Step 5: Solve for x
   x = 1,230,196.06/1,283.83
6. Step 6: Final answer
   x = 958.23