Finding the Fourth Proportional to 1,743.12, 2,404.49 and 1,212.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,743.12 : 2,404.49 = 1,212.17 : x
2. Step 2: Convert to fraction form
   1,743.12/2,404.49 = 1,212.17/x
3. Step 3: Cross multiply
   1,743.12x = 2,404.49 × 1,212.17
4. Step 4: Simplify right side
   1,743.12x = 2,914,632.56
5. Step 5: Solve for x
   x = 2,914,632.56/1,743.12
6. Step 6: Final answer
   x = 1,672.08