Finding the Fourth Proportional to 1,763.37, 2,433.52 and 1,007.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,763.37 : 2,433.52 = 1,007.21 : x
2. Step 2: Convert to fraction form
   1,763.37/2,433.52 = 1,007.21/x
3. Step 3: Cross multiply
   1,763.37x = 2,433.52 × 1,007.21
4. Step 4: Simplify right side
   1,763.37x = 2,451,075.85
5. Step 5: Solve for x
   x = 2,451,075.85/1,763.37
6. Step 6: Final answer
   x = 1,390.00