Finding the Fourth Proportional to 2,654.40, 3,663.72 and 1,606.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,654.40 : 3,663.72 = 1,606.80 : x
2. Step 2: Convert to fraction form
   2,654.40/3,663.72 = 1,606.80/x
3. Step 3: Cross multiply
   2,654.40x = 3,663.72 × 1,606.80
4. Step 4: Simplify right side
   2,654.40x = 5,886,865.30
5. Step 5: Solve for x
   x = 5,886,865.30/2,654.40
6. Step 6: Final answer
   x = 2,217.78