Finding the Fourth Proportional to 1,804.21, 2,488.25 and 1,174.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,804.21 : 2,488.25 = 1,174.50 : x
2. Step 2: Convert to fraction form
   1,804.21/2,488.25 = 1,174.50/x
3. Step 3: Cross multiply
   1,804.21x = 2,488.25 × 1,174.50
4. Step 4: Simplify right side
   1,804.21x = 2,922,452.56
5. Step 5: Solve for x
   x = 2,922,452.56/1,804.21
6. Step 6: Final answer
   x = 1,619.80