Finding the Fourth Proportional to 2,606.89, 3,907.58 and 1,219.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606.89 : 3,907.58 = 1,219.06 : x
2. Step 2: Convert to fraction form
   2,606.89/3,907.58 = 1,219.06/x
3. Step 3: Cross multiply
   2,606.89x = 3,907.58 × 1,219.06
4. Step 4: Simplify right side
   2,606.89x = 4,763,568.38
5. Step 5: Solve for x
   x = 4,763,568.38/2,606.89
6. Step 6: Final answer
   x = 1,827.30