Finding the Fourth Proportional to 5,557.80, 8,337.78 and 1,662.12

Step by Step Solution

1. Step 1: Write the proportion equation
   5,557.80 : 8,337.78 = 1,662.12 : x
2. Step 2: Convert to fraction form
   5,557.80/8,337.78 = 1,662.12/x
3. Step 3: Cross multiply
   5,557.80x = 8,337.78 × 1,662.12
4. Step 4: Simplify right side
   5,557.80x = 13,858,390.89
5. Step 5: Solve for x
   x = 13,858,390.89/5,557.80
6. Step 6: Final answer
   x = 2,493.50