Finding the Fourth Proportional to 2,212.88, 3,305.92 and 1,426.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,212.88 : 3,305.92 = 1,426.47 : x
2. Step 2: Convert to fraction form
   2,212.88/3,305.92 = 1,426.47/x
3. Step 3: Cross multiply
   2,212.88x = 3,305.92 × 1,426.47
4. Step 4: Simplify right side
   2,212.88x = 4,715,795.70
5. Step 5: Solve for x
   x = 4,715,795.70/2,212.88
6. Step 6: Final answer
   x = 2,131.07