Finding the Fourth Proportional to 2,573.23, 3,858.82 and 928.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,573.23 : 3,858.82 = 928.88 : x
2. Step 2: Convert to fraction form
   2,573.23/3,858.82 = 928.88/x
3. Step 3: Cross multiply
   2,573.23x = 3,858.82 × 928.88
4. Step 4: Simplify right side
   2,573.23x = 3,584,380.72
5. Step 5: Solve for x
   x = 3,584,380.72/2,573.23
6. Step 6: Final answer
   x = 1,392.95