Finding the Fourth Proportional to 2,540.85, 3,506.32 and 1,478.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,540.85 : 3,506.32 = 1,478.80 : x
2. Step 2: Convert to fraction form
   2,540.85/3,506.32 = 1,478.80/x
3. Step 3: Cross multiply
   2,540.85x = 3,506.32 × 1,478.80
4. Step 4: Simplify right side
   2,540.85x = 5,185,146.02
5. Step 5: Solve for x
   x = 5,185,146.02/2,540.85
6. Step 6: Final answer
   x = 2,040.71