Finding the Fourth Proportional to 2,146.72, 2,961.79 and 1,262.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146.72 : 2,961.79 = 1,262.83 : x
2. Step 2: Convert to fraction form
   2,146.72/2,961.79 = 1,262.83/x
3. Step 3: Cross multiply
   2,146.72x = 2,961.79 × 1,262.83
4. Step 4: Simplify right side
   2,146.72x = 3,740,237.27
5. Step 5: Solve for x
   x = 3,740,237.27/2,146.72
6. Step 6: Final answer
   x = 1,742.30