Finding the Fourth Proportional to 2,407.38, 3,611.94 and 945.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,407.38 : 3,611.94 = 945.72 : x
2. Step 2: Convert to fraction form
   2,407.38/3,611.94 = 945.72/x
3. Step 3: Cross multiply
   2,407.38x = 3,611.94 × 945.72
4. Step 4: Simplify right side
   2,407.38x = 3,415,883.90
5. Step 5: Solve for x
   x = 3,415,883.90/2,407.38
6. Step 6: Final answer
   x = 1,418.92