Finding the Fourth Proportional to 2,790.42, 4,185.96 and 941.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,790.42 : 4,185.96 = 941.72 : x
2. Step 2: Convert to fraction form
   2,790.42/4,185.96 = 941.72/x
3. Step 3: Cross multiply
   2,790.42x = 4,185.96 × 941.72
4. Step 4: Simplify right side
   2,790.42x = 3,942,002.25
5. Step 5: Solve for x
   x = 3,942,002.25/2,790.42
6. Step 6: Final answer
   x = 1,412.69