Finding the Fourth Proportional to 1,939.50, 2,676.51 and 1,111.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,939.50 : 2,676.51 = 1,111.50 : x
2. Step 2: Convert to fraction form
   1,939.50/2,676.51 = 1,111.50/x
3. Step 3: Cross multiply
   1,939.50x = 2,676.51 × 1,111.50
4. Step 4: Simplify right side
   1,939.50x = 2,974,940.87
5. Step 5: Solve for x
   x = 2,974,940.87/1,939.50
6. Step 6: Final answer
   x = 1,533.87