Finding the Fourth Proportional to 1,513.68, 2,091.12 and 1,016.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,513.68 : 2,091.12 = 1,016.16 : x
2. Step 2: Convert to fraction form
   1,513.68/2,091.12 = 1,016.16/x
3. Step 3: Cross multiply
   1,513.68x = 2,091.12 × 1,016.16
4. Step 4: Simplify right side
   1,513.68x = 2,124,912.50
5. Step 5: Solve for x
   x = 2,124,912.50/1,513.68
6. Step 6: Final answer
   x = 1,403.81