Finding the Fourth Proportional to 2,679.60, 3,697.86 and 1,617.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,679.60 : 3,697.86 = 1,617.42 : x
2. Step 2: Convert to fraction form
   2,679.60/3,697.86 = 1,617.42/x
3. Step 3: Cross multiply
   2,679.60x = 3,697.86 × 1,617.42
4. Step 4: Simplify right side
   2,679.60x = 5,980,992.72
5. Step 5: Solve for x
   x = 5,980,992.72/2,679.60
6. Step 6: Final answer
   x = 2,232.05