Finding the Fourth Proportional to 2,300.65, 3,448.41 and 913.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.65 : 3,448.41 = 913.61 : x
2. Step 2: Convert to fraction form
   2,300.65/3,448.41 = 913.61/x
3. Step 3: Cross multiply
   2,300.65x = 3,448.41 × 913.61
4. Step 4: Simplify right side
   2,300.65x = 3,150,507.06
5. Step 5: Solve for x
   x = 3,150,507.06/2,300.65
6. Step 6: Final answer
   x = 1,369.40