Finding the Fourth Proportional to 1,766.69, 2,437.47 and 1,020.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,766.69 : 2,437.47 = 1,020.55 : x
2. Step 2: Convert to fraction form
   1,766.69/2,437.47 = 1,020.55/x
3. Step 3: Cross multiply
   1,766.69x = 2,437.47 × 1,020.55
4. Step 4: Simplify right side
   1,766.69x = 2,487,560.01
5. Step 5: Solve for x
   x = 2,487,560.01/1,766.69
6. Step 6: Final answer
   x = 1,408.03