Finding the Fourth Proportional to 3,401.62, 5,099.19 and 1,091.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,401.62 : 5,099.19 = 1,091.50 : x
2. Step 2: Convert to fraction form
   3,401.62/5,099.19 = 1,091.50/x
3. Step 3: Cross multiply
   3,401.62x = 5,099.19 × 1,091.50
4. Step 4: Simplify right side
   3,401.62x = 5,565,765.89
5. Step 5: Solve for x
   x = 5,565,765.89/3,401.62
6. Step 6: Final answer
   x = 1,636.21