Finding the Fourth Proportional to 5,611.55, 8,416.37 and 1,662.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,611.55 : 8,416.37 = 1,662.72 : x
2. Step 2: Convert to fraction form
   5,611.55/8,416.37 = 1,662.72/x
3. Step 3: Cross multiply
   5,611.55x = 8,416.37 × 1,662.72
4. Step 4: Simplify right side
   5,611.55x = 13,994,058.41
5. Step 5: Solve for x
   x = 13,994,058.41/5,611.55
6. Step 6: Final answer
   x = 2,493.80