Finding the Fourth Proportional to 3,407.50, 5,112.06 and 1,099

Step by Step Solution

1. Step 1: Write the proportion equation
   3,407.50 : 5,112.06 = 1,099 : x
2. Step 2: Convert to fraction form
   3,407.50/5,112.06 = 1,099/x
3. Step 3: Cross multiply
   3,407.50x = 5,112.06 × 1,099
4. Step 4: Simplify right side
   3,407.50x = 5,618,153.94
5. Step 5: Solve for x
   x = 5,618,153.94/3,407.50
6. Step 6: Final answer
   x = 1,648.76