Finding the Fourth Proportional to 3,974.61, 5,959.59 and 1,200.45

Step by Step Solution

1. Step 1: Write the proportion equation
   3,974.61 : 5,959.59 = 1,200.45 : x
2. Step 2: Convert to fraction form
   3,974.61/5,959.59 = 1,200.45/x
3. Step 3: Cross multiply
   3,974.61x = 5,959.59 × 1,200.45
4. Step 4: Simplify right side
   3,974.61x = 7,154,189.82
5. Step 5: Solve for x
   x = 7,154,189.82/3,974.61
6. Step 6: Final answer
   x = 1,799.97