Finding the Fourth Proportional to 2,606.42, 3,907.90 and 1,436.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606.42 : 3,907.90 = 1,436.99 : x
2. Step 2: Convert to fraction form
   2,606.42/3,907.90 = 1,436.99/x
3. Step 3: Cross multiply
   2,606.42x = 3,907.90 × 1,436.99
4. Step 4: Simplify right side
   2,606.42x = 5,615,590.09
5. Step 5: Solve for x
   x = 5,615,590.09/2,606.42
6. Step 6: Final answer
   x = 2,154.53