Finding the Fourth Proportional to 2,146.32, 2,961.90 and 1,262.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146.32 : 2,961.90 = 1,262.76 : x
2. Step 2: Convert to fraction form
   2,146.32/2,961.90 = 1,262.76/x
3. Step 3: Cross multiply
   2,146.32x = 2,961.90 × 1,262.76
4. Step 4: Simplify right side
   2,146.32x = 3,740,168.84
5. Step 5: Solve for x
   x = 3,740,168.84/2,146.32
6. Step 6: Final answer
   x = 1,742.60