Finding the Fourth Proportional to 1,766.86, 2,437.69 and 1,020.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,766.86 : 2,437.69 = 1,020.72 : x
2. Step 2: Convert to fraction form
   1,766.86/2,437.69 = 1,020.72/x
3. Step 3: Cross multiply
   1,766.86x = 2,437.69 × 1,020.72
4. Step 4: Simplify right side
   1,766.86x = 2,488,198.94
5. Step 5: Solve for x
   x = 2,488,198.94/1,766.86
6. Step 6: Final answer
   x = 1,408.26