Finding the Fourth Proportional to 2,940.18, 4,410.18 and 1,207.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,940.18 : 4,410.18 = 1,207.50 : x
2. Step 2: Convert to fraction form
   2,940.18/4,410.18 = 1,207.50/x
3. Step 3: Cross multiply
   2,940.18x = 4,410.18 × 1,207.50
4. Step 4: Simplify right side
   2,940.18x = 5,325,292.35
5. Step 5: Solve for x
   x = 5,325,292.35/2,940.18
6. Step 6: Final answer
   x = 1,811.21