Finding the Fourth Proportional to 1,251.63, 1,874.71 and 634.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,251.63 : 1,874.71 = 634.27 : x
2. Step 2: Convert to fraction form
   1,251.63/1,874.71 = 634.27/x
3. Step 3: Cross multiply
   1,251.63x = 1,874.71 × 634.27
4. Step 4: Simplify right side
   1,251.63x = 1,189,072.31
5. Step 5: Solve for x
   x = 1,189,072.31/1,251.63
6. Step 6: Final answer
   x = 950.02