Finding the Fourth Proportional to 1,615.40, 2,419.34 and 1,036.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,615.40 : 2,419.34 = 1,036.52 : x
2. Step 2: Convert to fraction form
   1,615.40/2,419.34 = 1,036.52/x
3. Step 3: Cross multiply
   1,615.40x = 2,419.34 × 1,036.52
4. Step 4: Simplify right side
   1,615.40x = 2,507,694.30
5. Step 5: Solve for x
   x = 2,507,694.30/1,615.40
6. Step 6: Final answer
   x = 1,552.37