Finding the Fourth Proportional to 5,783.40, 7,985.46 and 3,793.20

Step by Step Solution

1. Step 1: Write the proportion equation
   5,783.40 : 7,985.46 = 3,793.20 : x
2. Step 2: Convert to fraction form
   5,783.40/7,985.46 = 3,793.20/x
3. Step 3: Cross multiply
   5,783.40x = 7,985.46 × 3,793.20
4. Step 4: Simplify right side
   5,783.40x = 30,290,446.87
5. Step 5: Solve for x
   x = 30,290,446.87/5,783.40
6. Step 6: Final answer
   x = 5,237.48