Finding the Fourth Proportional to 2,200.25, 3,298.10 and 738.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,200.25 : 3,298.10 = 738.91 : x
2. Step 2: Convert to fraction form
   2,200.25/3,298.10 = 738.91/x
3. Step 3: Cross multiply
   2,200.25x = 3,298.10 × 738.91
4. Step 4: Simplify right side
   2,200.25x = 2,436,999.07
5. Step 5: Solve for x
   x = 2,436,999.07/2,200.25
6. Step 6: Final answer
   x = 1,107.60