Finding the Fourth Proportional to 2,886.72, 4,330.46 and 938.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,886.72 : 4,330.46 = 938.27 : x
2. Step 2: Convert to fraction form
   2,886.72/4,330.46 = 938.27/x
3. Step 3: Cross multiply
   2,886.72x = 4,330.46 × 938.27
4. Step 4: Simplify right side
   2,886.72x = 4,063,121.40
5. Step 5: Solve for x
   x = 4,063,121.40/2,886.72
6. Step 6: Final answer
   x = 1,407.52