Finding the Fourth Proportional to 2,143.89, 3,210.80 and 1,044.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143.89 : 3,210.80 = 1,044.81 : x
2. Step 2: Convert to fraction form
   2,143.89/3,210.80 = 1,044.81/x
3. Step 3: Cross multiply
   2,143.89x = 3,210.80 × 1,044.81
4. Step 4: Simplify right side
   2,143.89x = 3,354,670.72
5. Step 5: Solve for x
   x = 3,354,670.72/2,143.89
6. Step 6: Final answer
   x = 1,564.76