Finding the Fourth Proportional to 2,869.52, 4,301.52 and 920.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,869.52 : 4,301.52 = 920.39 : x
2. Step 2: Convert to fraction form
   2,869.52/4,301.52 = 920.39/x
3. Step 3: Cross multiply
   2,869.52x = 4,301.52 × 920.39
4. Step 4: Simplify right side
   2,869.52x = 3,959,054.49
5. Step 5: Solve for x
   x = 3,959,054.49/2,869.52
6. Step 6: Final answer
   x = 1,379.69