Finding the Fourth Proportional to 2,615.05, 3,917.51 and 2,482.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,615.05 : 3,917.51 = 2,482.21 : x
2. Step 2: Convert to fraction form
   2,615.05/3,917.51 = 2,482.21/x
3. Step 3: Cross multiply
   2,615.05x = 3,917.51 × 2,482.21
4. Step 4: Simplify right side
   2,615.05x = 9,724,050.50
5. Step 5: Solve for x
   x = 9,724,050.50/2,615.05
6. Step 6: Final answer
   x = 3,718.50