Finding the Fourth Proportional to 6,404.54, 9,607.59 and 2,188.49

Step by Step Solution

1. Step 1: Write the proportion equation
   6,404.54 : 9,607.59 = 2,188.49 : x
2. Step 2: Convert to fraction form
   6,404.54/9,607.59 = 2,188.49/x
3. Step 3: Cross multiply
   6,404.54x = 9,607.59 × 2,188.49
4. Step 4: Simplify right side
   6,404.54x = 21,026,066.60
5. Step 5: Solve for x
   x = 21,026,066.60/6,404.54
6. Step 6: Final answer
   x = 3,283.00