Finding the Fourth Proportional to 3,973.99, 5,959.06 and 1,200.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,973.99 : 5,959.06 = 1,200.15 : x
2. Step 2: Convert to fraction form
   3,973.99/5,959.06 = 1,200.15/x
3. Step 3: Cross multiply
   3,973.99x = 5,959.06 × 1,200.15
4. Step 4: Simplify right side
   3,973.99x = 7,151,765.86
5. Step 5: Solve for x
   x = 7,151,765.86/3,973.99
6. Step 6: Final answer
   x = 1,799.64