Finding the Fourth Proportional to 2,615.15, 3,608.71 and 1,435.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,615.15 : 3,608.71 = 1,435.99 : x
2. Step 2: Convert to fraction form
   2,615.15/3,608.71 = 1,435.99/x
3. Step 3: Cross multiply
   2,615.15x = 3,608.71 × 1,435.99
4. Step 4: Simplify right side
   2,615.15x = 5,182,071.47
5. Step 5: Solve for x
   x = 5,182,071.47/2,615.15
6. Step 6: Final answer
   x = 1,981.56