Finding the Fourth Proportional to 1,804.50, 2,490.27 and 1,105.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,804.50 : 2,490.27 = 1,105.74 : x
2. Step 2: Convert to fraction form
   1,804.50/2,490.27 = 1,105.74/x
3. Step 3: Cross multiply
   1,804.50x = 2,490.27 × 1,105.74
4. Step 4: Simplify right side
   1,804.50x = 2,753,591.15
5. Step 5: Solve for x
   x = 2,753,591.15/1,804.50
6. Step 6: Final answer
   x = 1,525.96