Finding the Fourth Proportional to 2,473.56, 3,708.72 and 1,320.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,473.56 : 3,708.72 = 1,320.12 : x
2. Step 2: Convert to fraction form
   2,473.56/3,708.72 = 1,320.12/x
3. Step 3: Cross multiply
   2,473.56x = 3,708.72 × 1,320.12
4. Step 4: Simplify right side
   2,473.56x = 4,895,955.45
5. Step 5: Solve for x
   x = 4,895,955.45/2,473.56
6. Step 6: Final answer
   x = 1,979.32