Finding the Fourth Proportional to 2,785.21, 4,178.49 and 837.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,785.21 : 4,178.49 = 837.41 : x
2. Step 2: Convert to fraction form
   2,785.21/4,178.49 = 837.41/x
3. Step 3: Cross multiply
   2,785.21x = 4,178.49 × 837.41
4. Step 4: Simplify right side
   2,785.21x = 3,499,109.31
5. Step 5: Solve for x
   x = 3,499,109.31/2,785.21
6. Step 6: Final answer
   x = 1,256.32