Finding the Fourth Proportional to 3,970.04, 5,474.76 and 3,656.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,970.04 : 5,474.76 = 3,656.12 : x
2. Step 2: Convert to fraction form
   3,970.04/5,474.76 = 3,656.12/x
3. Step 3: Cross multiply
   3,970.04x = 5,474.76 × 3,656.12
4. Step 4: Simplify right side
   3,970.04x = 20,016,379.53
5. Step 5: Solve for x
   x = 20,016,379.53/3,970.04
6. Step 6: Final answer
   x = 5,041.86