Finding the Fourth Proportional to 1,789.56, 2,470.50 and 1,292.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.56 : 2,470.50 = 1,292.76 : x
2. Step 2: Convert to fraction form
   1,789.56/2,470.50 = 1,292.76/x
3. Step 3: Cross multiply
   1,789.56x = 2,470.50 × 1,292.76
4. Step 4: Simplify right side
   1,789.56x = 3,193,763.58
5. Step 5: Solve for x
   x = 3,193,763.58/1,789.56
6. Step 6: Final answer
   x = 1,784.66