Finding the Fourth Proportional to 3,668.66, 5,503.89 and 1,071.58

Step by Step Solution

1. Step 1: Write the proportion equation
   3,668.66 : 5,503.89 = 1,071.58 : x
2. Step 2: Convert to fraction form
   3,668.66/5,503.89 = 1,071.58/x
3. Step 3: Cross multiply
   3,668.66x = 5,503.89 × 1,071.58
4. Step 4: Simplify right side
   3,668.66x = 5,897,858.45
5. Step 5: Solve for x
   x = 5,897,858.45/3,668.66
6. Step 6: Final answer
   x = 1,607.63