Finding the Fourth Proportional to 2,402.09, 3,603.62 and 1,015.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,402.09 : 3,603.62 = 1,015.43 : x
2. Step 2: Convert to fraction form
   2,402.09/3,603.62 = 1,015.43/x
3. Step 3: Cross multiply
   2,402.09x = 3,603.62 × 1,015.43
4. Step 4: Simplify right side
   2,402.09x = 3,659,200.76
5. Step 5: Solve for x
   x = 3,659,200.76/2,402.09
6. Step 6: Final answer
   x = 1,523.34