Finding the Fourth Proportional to 2,116.09, 3,174.15 and 946.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116.09 : 3,174.15 = 946.15 : x
2. Step 2: Convert to fraction form
   2,116.09/3,174.15 = 946.15/x
3. Step 3: Cross multiply
   2,116.09x = 3,174.15 × 946.15
4. Step 4: Simplify right side
   2,116.09x = 3,003,222.02
5. Step 5: Solve for x
   x = 3,003,222.02/2,116.09
6. Step 6: Final answer
   x = 1,419.23