Finding the Fourth Proportional to 2,880.56, 4,317.50 and 1,648.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,880.56 : 4,317.50 = 1,648.55 : x
2. Step 2: Convert to fraction form
   2,880.56/4,317.50 = 1,648.55/x
3. Step 3: Cross multiply
   2,880.56x = 4,317.50 × 1,648.55
4. Step 4: Simplify right side
   2,880.56x = 7,117,629.54
5. Step 5: Solve for x
   x = 7,117,629.54/2,880.56
6. Step 6: Final answer
   x = 2,470.92