Finding the Fourth Proportional to 1,804.98, 2,490.98 and 1,019.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,804.98 : 2,490.98 = 1,019.10 : x
2. Step 2: Convert to fraction form
   1,804.98/2,490.98 = 1,019.10/x
3. Step 3: Cross multiply
   1,804.98x = 2,490.98 × 1,019.10
4. Step 4: Simplify right side
   1,804.98x = 2,538,557.72
5. Step 5: Solve for x
   x = 2,538,557.72/1,804.98
6. Step 6: Final answer
   x = 1,406.42