Finding the Fourth Proportional to 2,153.50, 2,971.79 and 1,196.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153.50 : 2,971.79 = 1,196.35 : x
2. Step 2: Convert to fraction form
   2,153.50/2,971.79 = 1,196.35/x
3. Step 3: Cross multiply
   2,153.50x = 2,971.79 × 1,196.35
4. Step 4: Simplify right side
   2,153.50x = 3,555,287.56
5. Step 5: Solve for x
   x = 3,555,287.56/2,153.50
6. Step 6: Final answer
   x = 1,650.93