Finding the Fourth Proportional to 2,485.60, 3,728.49 and 2,051.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.60 : 3,728.49 = 2,051.98 : x
2. Step 2: Convert to fraction form
   2,485.60/3,728.49 = 2,051.98/x
3. Step 3: Cross multiply
   2,485.60x = 3,728.49 × 2,051.98
4. Step 4: Simplify right side
   2,485.60x = 7,650,786.91
5. Step 5: Solve for x
   x = 7,650,786.91/2,485.60
6. Step 6: Final answer
   x = 3,078.04