Finding the Fourth Proportional to 2,133.50, 3,196.20 and 1,669.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,133.50 : 3,196.20 = 1,669.10 : x
2. Step 2: Convert to fraction form
   2,133.50/3,196.20 = 1,669.10/x
3. Step 3: Cross multiply
   2,133.50x = 3,196.20 × 1,669.10
4. Step 4: Simplify right side
   2,133.50x = 5,334,777.42
5. Step 5: Solve for x
   x = 5,334,777.42/2,133.50
6. Step 6: Final answer
   x = 2,500.48