Finding the Fourth Proportional to 2,126.89, 3,188.31 and 892.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,126.89 : 3,188.31 = 892.86 : x
2. Step 2: Convert to fraction form
   2,126.89/3,188.31 = 892.86/x
3. Step 3: Cross multiply
   2,126.89x = 3,188.31 × 892.86
4. Step 4: Simplify right side
   2,126.89x = 2,846,714.47
5. Step 5: Solve for x
   x = 2,846,714.47/2,126.89
6. Step 6: Final answer
   x = 1,338.44