Finding the Fourth Proportional to 2,516.12, 3,772.74 and 1,200.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,516.12 : 3,772.74 = 1,200.20 : x
2. Step 2: Convert to fraction form
   2,516.12/3,772.74 = 1,200.20/x
3. Step 3: Cross multiply
   2,516.12x = 3,772.74 × 1,200.20
4. Step 4: Simplify right side
   2,516.12x = 4,528,042.55
5. Step 5: Solve for x
   x = 4,528,042.55/2,516.12
6. Step 6: Final answer
   x = 1,799.61