Finding the Fourth Proportional to 2,451.60, 3,380.52 and 1,664.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,451.60 : 3,380.52 = 1,664.28 : x
2. Step 2: Convert to fraction form
   2,451.60/3,380.52 = 1,664.28/x
3. Step 3: Cross multiply
   2,451.60x = 3,380.52 × 1,664.28
4. Step 4: Simplify right side
   2,451.60x = 5,626,131.83
5. Step 5: Solve for x
   x = 5,626,131.83/2,451.60
6. Step 6: Final answer
   x = 2,294.88