Finding the Fourth Proportional to 2,488.50, 3,436.56 and 1,648.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,488.50 : 3,436.56 = 1,648.80 : x
2. Step 2: Convert to fraction form
   2,488.50/3,436.56 = 1,648.80/x
3. Step 3: Cross multiply
   2,488.50x = 3,436.56 × 1,648.80
4. Step 4: Simplify right side
   2,488.50x = 5,666,200.13
5. Step 5: Solve for x
   x = 5,666,200.13/2,488.50
6. Step 6: Final answer
   x = 2,276.95