Finding the Fourth Proportional to 1,513.96, 2,087.79 and 983.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,513.96 : 2,087.79 = 983.02 : x
2. Step 2: Convert to fraction form
   1,513.96/2,087.79 = 983.02/x
3. Step 3: Cross multiply
   1,513.96x = 2,087.79 × 983.02
4. Step 4: Simplify right side
   1,513.96x = 2,052,339.33
5. Step 5: Solve for x
   x = 2,052,339.33/1,513.96
6. Step 6: Final answer
   x = 1,355.61