Finding the Fourth Proportional to 1,939.59, 2,676.65 and 1,100.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,939.59 : 2,676.65 = 1,100.30 : x
2. Step 2: Convert to fraction form
   1,939.59/2,676.65 = 1,100.30/x
3. Step 3: Cross multiply
   1,939.59x = 2,676.65 × 1,100.30
4. Step 4: Simplify right side
   1,939.59x = 2,945,099.11
5. Step 5: Solve for x
   x = 2,945,099.11/1,939.59
6. Step 6: Final answer
   x = 1,518.41