Finding the Fourth Proportional to 1,343.08, 1,849.61 and 1,209.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.08 : 1,849.61 = 1,209.16 : x
2. Step 2: Convert to fraction form
   1,343.08/1,849.61 = 1,209.16/x
3. Step 3: Cross multiply
   1,343.08x = 1,849.61 × 1,209.16
4. Step 4: Simplify right side
   1,343.08x = 2,236,472.83
5. Step 5: Solve for x
   x = 2,236,472.83/1,343.08
6. Step 6: Final answer
   x = 1,665.19