Finding the Fourth Proportional to 1,789.86, 2,469.76 and 1,043.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.86 : 2,469.76 = 1,043.71 : x
2. Step 2: Convert to fraction form
   1,789.86/2,469.76 = 1,043.71/x
3. Step 3: Cross multiply
   1,789.86x = 2,469.76 × 1,043.71
4. Step 4: Simplify right side
   1,789.86x = 2,577,713.21
5. Step 5: Solve for x
   x = 2,577,713.21/1,789.86
6. Step 6: Final answer
   x = 1,440.18