Finding the Fourth Proportional to 2,785.42, 4,178.28 and 937.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,785.42 : 4,178.28 = 937.10 : x
2. Step 2: Convert to fraction form
   2,785.42/4,178.28 = 937.10/x
3. Step 3: Cross multiply
   2,785.42x = 4,178.28 × 937.10
4. Step 4: Simplify right side
   2,785.42x = 3,915,480.15
5. Step 5: Solve for x
   x = 3,915,480.15/2,785.42
6. Step 6: Final answer
   x = 1,405.70