Finding the Fourth Proportional to 2,875.98, 4,314.33 and 928.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,875.98 : 4,314.33 = 928.38 : x
2. Step 2: Convert to fraction form
   2,875.98/4,314.33 = 928.38/x
3. Step 3: Cross multiply
   2,875.98x = 4,314.33 × 928.38
4. Step 4: Simplify right side
   2,875.98x = 4,005,337.69
5. Step 5: Solve for x
   x = 4,005,337.69/2,875.98
6. Step 6: Final answer
   x = 1,392.69