Finding the Fourth Proportional to 3,391.62, 5,087.50 and 1,083.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,391.62 : 5,087.50 = 1,083.12 : x
2. Step 2: Convert to fraction form
   3,391.62/5,087.50 = 1,083.12/x
3. Step 3: Cross multiply
   3,391.62x = 5,087.50 × 1,083.12
4. Step 4: Simplify right side
   3,391.62x = 5,510,373.00
5. Step 5: Solve for x
   x = 5,510,373.00/3,391.62
6. Step 6: Final answer
   x = 1,624.70