Finding the Fourth Proportional to 2,270.30, 3,400.89 and 1,655.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,270.30 : 3,400.89 = 1,655.31 : x
2. Step 2: Convert to fraction form
   2,270.30/3,400.89 = 1,655.31/x
3. Step 3: Cross multiply
   2,270.30x = 3,400.89 × 1,655.31
4. Step 4: Simplify right side
   2,270.30x = 5,629,527.23
5. Step 5: Solve for x
   x = 5,629,527.23/2,270.30
6. Step 6: Final answer
   x = 2,479.64