Finding the Fourth Proportional to 2,980.62, 4,111.02 and 1,800.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,980.62 : 4,111.02 = 1,800.18 : x
2. Step 2: Convert to fraction form
   2,980.62/4,111.02 = 1,800.18/x
3. Step 3: Cross multiply
   2,980.62x = 4,111.02 × 1,800.18
4. Step 4: Simplify right side
   2,980.62x = 7,400,575.98
5. Step 5: Solve for x
   x = 7,400,575.98/2,980.62
6. Step 6: Final answer
   x = 2,482.90