Finding the Fourth Proportional to 3,126.72, 4,689.27 and 934.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,126.72 : 4,689.27 = 934.86 : x
2. Step 2: Convert to fraction form
   3,126.72/4,689.27 = 934.86/x
3. Step 3: Cross multiply
   3,126.72x = 4,689.27 × 934.86
4. Step 4: Simplify right side
   3,126.72x = 4,383,810.95
5. Step 5: Solve for x
   x = 4,383,810.95/3,126.72
6. Step 6: Final answer
   x = 1,402.05