Finding the Fourth Proportional to 2,211.98, 3,317.24 and 979.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,211.98 : 3,317.24 = 979.37 : x
2. Step 2: Convert to fraction form
   2,211.98/3,317.24 = 979.37/x
3. Step 3: Cross multiply
   2,211.98x = 3,317.24 × 979.37
4. Step 4: Simplify right side
   2,211.98x = 3,248,783.86
5. Step 5: Solve for x
   x = 3,248,783.86/2,211.98
6. Step 6: Final answer
   x = 1,468.73