Finding the Fourth Proportional to 3,622.22, 5,435.76 and 1,313.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,622.22 : 5,435.76 = 1,313.72 : x
2. Step 2: Convert to fraction form
   3,622.22/5,435.76 = 1,313.72/x
3. Step 3: Cross multiply
   3,622.22x = 5,435.76 × 1,313.72
4. Step 4: Simplify right side
   3,622.22x = 7,141,057.37
5. Step 5: Solve for x
   x = 7,141,057.37/3,622.22
6. Step 6: Final answer
   x = 1,971.46