Finding the Fourth Proportional to 1,160.22, 1,601.37 and 711.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,160.22 : 1,601.37 = 711.98 : x
2. Step 2: Convert to fraction form
   1,160.22/1,601.37 = 711.98/x
3. Step 3: Cross multiply
   1,160.22x = 1,601.37 × 711.98
4. Step 4: Simplify right side
   1,160.22x = 1,140,135.41
5. Step 5: Solve for x
   x = 1,140,135.41/1,160.22
6. Step 6: Final answer
   x = 982.69