Finding the Fourth Proportional to 2,843.79, 4,264.74 and 1,200.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,843.79 : 4,264.74 = 1,200.30 : x
2. Step 2: Convert to fraction form
   2,843.79/4,264.74 = 1,200.30/x
3. Step 3: Cross multiply
   2,843.79x = 4,264.74 × 1,200.30
4. Step 4: Simplify right side
   2,843.79x = 5,118,967.42
5. Step 5: Solve for x
   x = 5,118,967.42/2,843.79
6. Step 6: Final answer
   x = 1,800.05