Finding the Fourth Proportional to 1,763.40, 2,647.16 and 1,399.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,763.40 : 2,647.16 = 1,399.82 : x
2. Step 2: Convert to fraction form
   1,763.40/2,647.16 = 1,399.82/x
3. Step 3: Cross multiply
   1,763.40x = 2,647.16 × 1,399.82
4. Step 4: Simplify right side
   1,763.40x = 3,705,527.28
5. Step 5: Solve for x
   x = 3,705,527.28/1,763.40
6. Step 6: Final answer
   x = 2,101.35