Finding the Fourth Proportional to 2,868.87, 4,303.41 and 920.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,868.87 : 4,303.41 = 920.82 : x
2. Step 2: Convert to fraction form
   2,868.87/4,303.41 = 920.82/x
3. Step 3: Cross multiply
   2,868.87x = 4,303.41 × 920.82
4. Step 4: Simplify right side
   2,868.87x = 3,962,666.00
5. Step 5: Solve for x
   x = 3,962,666.00/2,868.87
6. Step 6: Final answer
   x = 1,381.26