Finding the Fourth Proportional to 3,669.51, 5,503.86 and 1,072.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,669.51 : 5,503.86 = 1,072.47 : x
2. Step 2: Convert to fraction form
   3,669.51/5,503.86 = 1,072.47/x
3. Step 3: Cross multiply
   3,669.51x = 5,503.86 × 1,072.47
4. Step 4: Simplify right side
   3,669.51x = 5,902,724.73
5. Step 5: Solve for x
   x = 5,902,724.73/3,669.51
6. Step 6: Final answer
   x = 1,608.59