Finding the Fourth Proportional to 2,620.35, 3,929.27 and 1,525.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620.35 : 3,929.27 = 1,525.05 : x
2. Step 2: Convert to fraction form
   2,620.35/3,929.27 = 1,525.05/x
3. Step 3: Cross multiply
   2,620.35x = 3,929.27 × 1,525.05
4. Step 4: Simplify right side
   2,620.35x = 5,992,325.59
5. Step 5: Solve for x
   x = 5,992,325.59/2,620.35
6. Step 6: Final answer
   x = 2,286.84