Finding the Fourth Proportional to 1,766.43, 2,644.61 and 1,401.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,766.43 : 2,644.61 = 1,401.75 : x
2. Step 2: Convert to fraction form
   1,766.43/2,644.61 = 1,401.75/x
3. Step 3: Cross multiply
   1,766.43x = 2,644.61 × 1,401.75
4. Step 4: Simplify right side
   1,766.43x = 3,707,075.06
5. Step 5: Solve for x
   x = 3,707,075.06/1,766.43
6. Step 6: Final answer
   x = 2,098.63