Finding the Fourth Proportional to 3,669.34, 5,503.92 and 1,072.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,669.34 : 5,503.92 = 1,072.30 : x
2. Step 2: Convert to fraction form
   3,669.34/5,503.92 = 1,072.30/x
3. Step 3: Cross multiply
   3,669.34x = 5,503.92 × 1,072.30
4. Step 4: Simplify right side
   3,669.34x = 5,901,853.42
5. Step 5: Solve for x
   x = 5,901,853.42/3,669.34
6. Step 6: Final answer
   x = 1,608.42