Finding the Fourth Proportional to 2,978.84, 4,111.23 and 1,800.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.84 : 4,111.23 = 1,800.08 : x
2. Step 2: Convert to fraction form
   2,978.84/4,111.23 = 1,800.08/x
3. Step 3: Cross multiply
   2,978.84x = 4,111.23 × 1,800.08
4. Step 4: Simplify right side
   2,978.84x = 7,400,542.90
5. Step 5: Solve for x
   x = 7,400,542.90/2,978.84
6. Step 6: Final answer
   x = 2,484.37