Finding the Fourth Proportional to 1,789.90, 2,470.03 and 1,043.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.90 : 2,470.03 = 1,043.89 : x
2. Step 2: Convert to fraction form
   1,789.90/2,470.03 = 1,043.89/x
3. Step 3: Cross multiply
   1,789.90x = 2,470.03 × 1,043.89
4. Step 4: Simplify right side
   1,789.90x = 2,578,439.62
5. Step 5: Solve for x
   x = 2,578,439.62/1,789.90
6. Step 6: Final answer
   x = 1,440.55