Finding the Fourth Proportional to 3,607.48, 5,406.90 and 1,297.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,607.48 : 5,406.90 = 1,297.72 : x
2. Step 2: Convert to fraction form
   3,607.48/5,406.90 = 1,297.72/x
3. Step 3: Cross multiply
   3,607.48x = 5,406.90 × 1,297.72
4. Step 4: Simplify right side
   3,607.48x = 7,016,642.27
5. Step 5: Solve for x
   x = 7,016,642.27/3,607.48
6. Step 6: Final answer
   x = 1,945.03