Finding the Fourth Proportional to 2,740.58, 4,111.95 and 1,200.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,740.58 : 4,111.95 = 1,200.50 : x
2. Step 2: Convert to fraction form
   2,740.58/4,111.95 = 1,200.50/x
3. Step 3: Cross multiply
   2,740.58x = 4,111.95 × 1,200.50
4. Step 4: Simplify right side
   2,740.58x = 4,936,395.98
5. Step 5: Solve for x
   x = 4,936,395.98/2,740.58
6. Step 6: Final answer
   x = 1,801.22