Finding the Fourth Proportional to 2,803.55, 4,200.69 and 1,241.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,803.55 : 4,200.69 = 1,241.21 : x
2. Step 2: Convert to fraction form
   2,803.55/4,200.69 = 1,241.21/x
3. Step 3: Cross multiply
   2,803.55x = 4,200.69 × 1,241.21
4. Step 4: Simplify right side
   2,803.55x = 5,213,938.43
5. Step 5: Solve for x
   x = 5,213,938.43/2,803.55
6. Step 6: Final answer
   x = 1,859.76