Finding the Fourth Proportional to 2,613.92, 3,607.17 and 1,435.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.92 : 3,607.17 = 1,435.02 : x
2. Step 2: Convert to fraction form
   2,613.92/3,607.17 = 1,435.02/x
3. Step 3: Cross multiply
   2,613.92x = 3,607.17 × 1,435.02
4. Step 4: Simplify right side
   2,613.92x = 5,176,361.09
5. Step 5: Solve for x
   x = 5,176,361.09/2,613.92
6. Step 6: Final answer
   x = 1,980.31