Finding the Fourth Proportional to 2,316.46, 3,196.89 and 1,420.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,316.46 : 3,196.89 = 1,420.19 : x
2. Step 2: Convert to fraction form
   2,316.46/3,196.89 = 1,420.19/x
3. Step 3: Cross multiply
   2,316.46x = 3,196.89 × 1,420.19
4. Step 4: Simplify right side
   2,316.46x = 4,540,199.20
5. Step 5: Solve for x
   x = 4,540,199.20/2,316.46
6. Step 6: Final answer
   x = 1,959.98