Finding the Fourth Proportional to 2,126.38, 2,933.10 and 1,339.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,126.38 : 2,933.10 = 1,339.78 : x
2. Step 2: Convert to fraction form
   2,126.38/2,933.10 = 1,339.78/x
3. Step 3: Cross multiply
   2,126.38x = 2,933.10 × 1,339.78
4. Step 4: Simplify right side
   2,126.38x = 3,929,708.72
5. Step 5: Solve for x
   x = 3,929,708.72/2,126.38
6. Step 6: Final answer
   x = 1,848.07