Finding the Fourth Proportional to 2,300.98, 3,449.40 and 913.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.98 : 3,449.40 = 913.64 : x
2. Step 2: Convert to fraction form
   2,300.98/3,449.40 = 913.64/x
3. Step 3: Cross multiply
   2,300.98x = 3,449.40 × 913.64
4. Step 4: Simplify right side
   2,300.98x = 3,151,509.82
5. Step 5: Solve for x
   x = 3,151,509.82/2,300.98
6. Step 6: Final answer
   x = 1,369.64