Finding the Fourth Proportional to 3,732.06, 5,185.98 and 3,691.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,732.06 : 5,185.98 = 3,691.56 : x
2. Step 2: Convert to fraction form
   3,732.06/5,185.98 = 3,691.56/x
3. Step 3: Cross multiply
   3,732.06x = 5,185.98 × 3,691.56
4. Step 4: Simplify right side
   3,732.06x = 19,144,356.33
5. Step 5: Solve for x
   x = 19,144,356.33/3,732.06
6. Step 6: Final answer
   x = 5,129.70