Finding the Fourth Proportional to 2,485.15, 3,723.04 and 2,076.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.15 : 3,723.04 = 2,076.91 : x
2. Step 2: Convert to fraction form
   2,485.15/3,723.04 = 2,076.91/x
3. Step 3: Cross multiply
   2,485.15x = 3,723.04 × 2,076.91
4. Step 4: Simplify right side
   2,485.15x = 7,732,419.01
5. Step 5: Solve for x
   x = 7,732,419.01/2,485.15
6. Step 6: Final answer
   x = 3,111.45