Finding the Fourth Proportional to 2,251.34, 3,382.98 and 1,212.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,251.34 : 3,382.98 = 1,212.12 : x
2. Step 2: Convert to fraction form
   2,251.34/3,382.98 = 1,212.12/x
3. Step 3: Cross multiply
   2,251.34x = 3,382.98 × 1,212.12
4. Step 4: Simplify right side
   2,251.34x = 4,100,577.72
5. Step 5: Solve for x
   x = 4,100,577.72/2,251.34
6. Step 6: Final answer
   x = 1,821.39