Finding the Fourth Proportional to 1,508.76, 2,257.88 and 923.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,508.76 : 2,257.88 = 923.50 : x
2. Step 2: Convert to fraction form
   1,508.76/2,257.88 = 923.50/x
3. Step 3: Cross multiply
   1,508.76x = 2,257.88 × 923.50
4. Step 4: Simplify right side
   1,508.76x = 2,085,150.38
5. Step 5: Solve for x
   x = 2,085,150.38/1,508.76
6. Step 6: Final answer
   x = 1,382.03