Finding the Fourth Proportional to 2,646.38, 3,969.98 and 1,347.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,646.38 : 3,969.98 = 1,347.14 : x
2. Step 2: Convert to fraction form
   2,646.38/3,969.98 = 1,347.14/x
3. Step 3: Cross multiply
   2,646.38x = 3,969.98 × 1,347.14
4. Step 4: Simplify right side
   2,646.38x = 5,348,118.86
5. Step 5: Solve for x
   x = 5,348,118.86/2,646.38
6. Step 6: Final answer
   x = 2,020.92