Finding the Fourth Proportional to 2,111.24, 2,913.78 and 1,282.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.24 : 2,913.78 = 1,282.76 : x
2. Step 2: Convert to fraction form
   2,111.24/2,913.78 = 1,282.76/x
3. Step 3: Cross multiply
   2,111.24x = 2,913.78 × 1,282.76
4. Step 4: Simplify right side
   2,111.24x = 3,737,680.43
5. Step 5: Solve for x
   x = 3,737,680.43/2,111.24
6. Step 6: Final answer
   x = 1,770.37