Finding the Fourth Proportional to 2,620.55, 3,615.95 and 1,486.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620.55 : 3,615.95 = 1,486.15 : x
2. Step 2: Convert to fraction form
   2,620.55/3,615.95 = 1,486.15/x
3. Step 3: Cross multiply
   2,620.55x = 3,615.95 × 1,486.15
4. Step 4: Simplify right side
   2,620.55x = 5,373,844.09
5. Step 5: Solve for x
   x = 5,373,844.09/2,620.55
6. Step 6: Final answer
   x = 2,050.66