Finding the Fourth Proportional to 1,426.78, 2,134.45 and 1,233.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.78 : 2,134.45 = 1,233.86 : x
2. Step 2: Convert to fraction form
   1,426.78/2,134.45 = 1,233.86/x
3. Step 3: Cross multiply
   1,426.78x = 2,134.45 × 1,233.86
4. Step 4: Simplify right side
   1,426.78x = 2,633,612.48
5. Step 5: Solve for x
   x = 2,633,612.48/1,426.78
6. Step 6: Final answer
   x = 1,845.84