Finding the Fourth Proportional to 2,191.82, 3,287.41 and 892.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.82 : 3,287.41 = 892.98 : x
2. Step 2: Convert to fraction form
   2,191.82/3,287.41 = 892.98/x
3. Step 3: Cross multiply
   2,191.82x = 3,287.41 × 892.98
4. Step 4: Simplify right side
   2,191.82x = 2,935,589.15
5. Step 5: Solve for x
   x = 2,935,589.15/2,191.82
6. Step 6: Final answer
   x = 1,339.34