Finding the Fourth Proportional to 2,552.15, 3,520.63 and 1,606.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,552.15 : 3,520.63 = 1,606.15 : x
2. Step 2: Convert to fraction form
   2,552.15/3,520.63 = 1,606.15/x
3. Step 3: Cross multiply
   2,552.15x = 3,520.63 × 1,606.15
4. Step 4: Simplify right side
   2,552.15x = 5,654,651.84
5. Step 5: Solve for x
   x = 5,654,651.84/2,552.15
6. Step 6: Final answer
   x = 2,215.65