Finding the Fourth Proportional to 2,436.21, 3,360.89 and 1,691.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,436.21 : 3,360.89 = 1,691.96 : x
2. Step 2: Convert to fraction form
   2,436.21/3,360.89 = 1,691.96/x
3. Step 3: Cross multiply
   2,436.21x = 3,360.89 × 1,691.96
4. Step 4: Simplify right side
   2,436.21x = 5,686,478.87
5. Step 5: Solve for x
   x = 5,686,478.87/2,436.21
6. Step 6: Final answer
   x = 2,334.15