Finding the Fourth Proportional to 3,973.16, 5,960.46 and 1,199.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,973.16 : 5,960.46 = 1,199.72 : x
2. Step 2: Convert to fraction form
   3,973.16/5,960.46 = 1,199.72/x
3. Step 3: Cross multiply
   3,973.16x = 5,960.46 × 1,199.72
4. Step 4: Simplify right side
   3,973.16x = 7,150,883.07
5. Step 5: Solve for x
   x = 7,150,883.07/3,973.16
6. Step 6: Final answer
   x = 1,799.80