Finding the Fourth Proportional to 2,389.67, 3,580.85 and 1,002.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389.67 : 3,580.85 = 1,002.25 : x
2. Step 2: Convert to fraction form
   2,389.67/3,580.85 = 1,002.25/x
3. Step 3: Cross multiply
   2,389.67x = 3,580.85 × 1,002.25
4. Step 4: Simplify right side
   2,389.67x = 3,588,892.95
5. Step 5: Solve for x
   x = 3,588,892.95/2,389.67
6. Step 6: Final answer
   x = 1,501.84