Finding the Fourth Proportional to 2,196.39, 3,294.54 and 1,319.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.39 : 3,294.54 = 1,319.13 : x
2. Step 2: Convert to fraction form
   2,196.39/3,294.54 = 1,319.13/x
3. Step 3: Cross multiply
   2,196.39x = 3,294.54 × 1,319.13
4. Step 4: Simplify right side
   2,196.39x = 4,345,926.55
5. Step 5: Solve for x
   x = 4,345,926.55/2,196.39
6. Step 6: Final answer
   x = 1,978.67