Finding the Fourth Proportional to 2,390.94, 3,583.82 and 1,005.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,390.94 : 3,583.82 = 1,005.04 : x
2. Step 2: Convert to fraction form
   2,390.94/3,583.82 = 1,005.04/x
3. Step 3: Cross multiply
   2,390.94x = 3,583.82 × 1,005.04
4. Step 4: Simplify right side
   2,390.94x = 3,601,882.45
5. Step 5: Solve for x
   x = 3,601,882.45/2,390.94
6. Step 6: Final answer
   x = 1,506.47