Finding the Fourth Proportional to 2,851.04, 4,271.68 and 2,238.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,851.04 : 4,271.68 = 2,238.72 : x
2. Step 2: Convert to fraction form
   2,851.04/4,271.68 = 2,238.72/x
3. Step 3: Cross multiply
   2,851.04x = 4,271.68 × 2,238.72
4. Step 4: Simplify right side
   2,851.04x = 9,563,095.45
5. Step 5: Solve for x
   x = 9,563,095.45/2,851.04
6. Step 6: Final answer
   x = 3,354.25