Finding the Fourth Proportional to 2,980.30, 4,111.53 and 1,800.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,980.30 : 4,111.53 = 1,800.69 : x
2. Step 2: Convert to fraction form
   2,980.30/4,111.53 = 1,800.69/x
3. Step 3: Cross multiply
   2,980.30x = 4,111.53 × 1,800.69
4. Step 4: Simplify right side
   2,980.30x = 7,403,580.68
5. Step 5: Solve for x
   x = 7,403,580.68/2,980.30
6. Step 6: Final answer
   x = 2,484.17