Finding the Fourth Proportional to 2,298.72, 3,447.78 and 738.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.72 : 3,447.78 = 738.88 : x
2. Step 2: Convert to fraction form
   2,298.72/3,447.78 = 738.88/x
3. Step 3: Cross multiply
   2,298.72x = 3,447.78 × 738.88
4. Step 4: Simplify right side
   2,298.72x = 2,547,495.69
5. Step 5: Solve for x
   x = 2,547,495.69/2,298.72
6. Step 6: Final answer
   x = 1,108.22