Finding the Fourth Proportional to 9,783.70, 14,675.50 and 2,388.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,783.70 : 14,675.50 = 2,388.20 : x
2. Step 2: Convert to fraction form
   9,783.70/14,675.50 = 2,388.20/x
3. Step 3: Cross multiply
   9,783.70x = 14,675.50 × 2,388.20
4. Step 4: Simplify right side
   9,783.70x = 35,047,945.27
5. Step 5: Solve for x
   x = 35,047,945.27/9,783.70
6. Step 6: Final answer
   x = 3,582.28