Finding the Fourth Proportional to 2,786.00, 4,178.52 and 837.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,786.00 : 4,178.52 = 837.74 : x
2. Step 2: Convert to fraction form
   2,786.00/4,178.52 = 837.74/x
3. Step 3: Cross multiply
   2,786.00x = 4,178.52 × 837.74
4. Step 4: Simplify right side
   2,786.00x = 3,500,523.79
5. Step 5: Solve for x
   x = 3,500,523.79/2,786.00
6. Step 6: Final answer
   x = 1,256.47