Finding the Fourth Proportional to 2,613.94, 3,607.25 and 1,435.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.94 : 3,607.25 = 1,435.09 : x
2. Step 2: Convert to fraction form
   2,613.94/3,607.25 = 1,435.09/x
3. Step 3: Cross multiply
   2,613.94x = 3,607.25 × 1,435.09
4. Step 4: Simplify right side
   2,613.94x = 5,176,712.21
5. Step 5: Solve for x
   x = 5,176,712.21/2,613.94
6. Step 6: Final answer
   x = 1,980.42