Finding the Fourth Proportional to 2,931.03, 4,395.52 and 850.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,931.03 : 4,395.52 = 850.47 : x
2. Step 2: Convert to fraction form
   2,931.03/4,395.52 = 850.47/x
3. Step 3: Cross multiply
   2,931.03x = 4,395.52 × 850.47
4. Step 4: Simplify right side
   2,931.03x = 3,738,257.89
5. Step 5: Solve for x
   x = 3,738,257.89/2,931.03
6. Step 6: Final answer
   x = 1,275.41