Finding the Fourth Proportional to 3,734.80, 5,603.76 and 3,706.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,734.80 : 5,603.76 = 3,706.72 : x
2. Step 2: Convert to fraction form
   3,734.80/5,603.76 = 3,706.72/x
3. Step 3: Cross multiply
   3,734.80x = 5,603.76 × 3,706.72
4. Step 4: Simplify right side
   3,734.80x = 20,771,569.27
5. Step 5: Solve for x
   x = 20,771,569.27/3,734.80
6. Step 6: Final answer
   x = 5,561.63