Finding the Fourth Proportional to 2,785.23, 4,178.52 and 837.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,785.23 : 4,178.52 = 837.45 : x
2. Step 2: Convert to fraction form
   2,785.23/4,178.52 = 837.45/x
3. Step 3: Cross multiply
   2,785.23x = 4,178.52 × 837.45
4. Step 4: Simplify right side
   2,785.23x = 3,499,301.57
5. Step 5: Solve for x
   x = 3,499,301.57/2,785.23
6. Step 6: Final answer
   x = 1,256.38