Finding the Fourth Proportional to 1,421.24, 1,962.06 and 1,072.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,421.24 : 1,962.06 = 1,072.76 : x
2. Step 2: Convert to fraction form
   1,421.24/1,962.06 = 1,072.76/x
3. Step 3: Cross multiply
   1,421.24x = 1,962.06 × 1,072.76
4. Step 4: Simplify right side
   1,421.24x = 2,104,819.49
5. Step 5: Solve for x
   x = 2,104,819.49/1,421.24
6. Step 6: Final answer
   x = 1,480.97