Finding the Fourth Proportional to 2,304.96, 3,454.98 and 917.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,304.96 : 3,454.98 = 917.72 : x
2. Step 2: Convert to fraction form
   2,304.96/3,454.98 = 917.72/x
3. Step 3: Cross multiply
   2,304.96x = 3,454.98 × 917.72
4. Step 4: Simplify right side
   2,304.96x = 3,170,704.25
5. Step 5: Solve for x
   x = 3,170,704.25/2,304.96
6. Step 6: Final answer
   x = 1,375.60