Finding the Fourth Proportional to 1,804.68, 2,490.72 and 1,361.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,804.68 : 2,490.72 = 1,361.88 : x
2. Step 2: Convert to fraction form
   1,804.68/2,490.72 = 1,361.88/x
3. Step 3: Cross multiply
   1,804.68x = 2,490.72 × 1,361.88
4. Step 4: Simplify right side
   1,804.68x = 3,392,061.75
5. Step 5: Solve for x
   x = 3,392,061.75/1,804.68
6. Step 6: Final answer
   x = 1,879.59