Finding the Fourth Proportional to 2,978.65, 4,111.01 and 1,800.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.65 : 4,111.01 = 1,800.37 : x
2. Step 2: Convert to fraction form
   2,978.65/4,111.01 = 1,800.37/x
3. Step 3: Cross multiply
   2,978.65x = 4,111.01 × 1,800.37
4. Step 4: Simplify right side
   2,978.65x = 7,401,339.07
5. Step 5: Solve for x
   x = 7,401,339.07/2,978.65
6. Step 6: Final answer
   x = 2,484.80