Finding the Fourth Proportional to 2,868.48, 4,302.52 and 920.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,868.48 : 4,302.52 = 920.52 : x
2. Step 2: Convert to fraction form
   2,868.48/4,302.52 = 920.52/x
3. Step 3: Cross multiply
   2,868.48x = 4,302.52 × 920.52
4. Step 4: Simplify right side
   2,868.48x = 3,960,555.71
5. Step 5: Solve for x
   x = 3,960,555.71/2,868.48
6. Step 6: Final answer
   x = 1,380.72