Finding the Fourth Proportional to 2,140.72, 3,212.12 and 1,044.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140.72 : 3,212.12 = 1,044.50 : x
2. Step 2: Convert to fraction form
   2,140.72/3,212.12 = 1,044.50/x
3. Step 3: Cross multiply
   2,140.72x = 3,212.12 × 1,044.50
4. Step 4: Simplify right side
   2,140.72x = 3,355,045.89
5. Step 5: Solve for x
   x = 3,355,045.89/2,140.72
6. Step 6: Final answer
   x = 1,567.25