Finding the Fourth Proportional to 2,849.63, 4,271.72 and 900.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,849.63 : 4,271.72 = 900.50 : x
2. Step 2: Convert to fraction form
   2,849.63/4,271.72 = 900.50/x
3. Step 3: Cross multiply
   2,849.63x = 4,271.72 × 900.50
4. Step 4: Simplify right side
   2,849.63x = 3,846,690.04
5. Step 5: Solve for x
   x = 3,846,690.04/2,849.63
6. Step 6: Final answer
   x = 1,349.89