Finding the Fourth Proportional to 2,783.20, 4,174.72 and 703.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,783.20 : 4,174.72 = 703.27 : x
2. Step 2: Convert to fraction form
   2,783.20/4,174.72 = 703.27/x
3. Step 3: Cross multiply
   2,783.20x = 4,174.72 × 703.27
4. Step 4: Simplify right side
   2,783.20x = 2,935,955.33
5. Step 5: Solve for x
   x = 2,935,955.33/2,783.20
6. Step 6: Final answer
   x = 1,054.88