Finding the Fourth Proportional to 2,079.04, 3,116.91 and 1,200.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,079.04 : 3,116.91 = 1,200.55 : x
2. Step 2: Convert to fraction form
   2,079.04/3,116.91 = 1,200.55/x
3. Step 3: Cross multiply
   2,079.04x = 3,116.91 × 1,200.55
4. Step 4: Simplify right side
   2,079.04x = 3,741,996.26
5. Step 5: Solve for x
   x = 3,741,996.26/2,079.04
6. Step 6: Final answer
   x = 1,799.86