Finding the Fourth Proportional to 2,610.60, 3,602.57 and 1,615.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.60 : 3,602.57 = 1,615.62 : x
2. Step 2: Convert to fraction form
   2,610.60/3,602.57 = 1,615.62/x
3. Step 3: Cross multiply
   2,610.60x = 3,602.57 × 1,615.62
4. Step 4: Simplify right side
   2,610.60x = 5,820,384.14
5. Step 5: Solve for x
   x = 5,820,384.14/2,610.60
6. Step 6: Final answer
   x = 2,229.52