Finding the Fourth Proportional to 3,971.86, 5,483.48 and 2,480.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,971.86 : 5,483.48 = 2,480.56 : x
2. Step 2: Convert to fraction form
   3,971.86/5,483.48 = 2,480.56/x
3. Step 3: Cross multiply
   3,971.86x = 5,483.48 × 2,480.56
4. Step 4: Simplify right side
   3,971.86x = 13,602,075.04
5. Step 5: Solve for x
   x = 13,602,075.04/3,971.86
6. Step 6: Final answer
   x = 3,424.61