Finding the Fourth Proportional to 2,503.02, 3,453.12 and 1,618.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,503.02 : 3,453.12 = 1,618.50 : x
2. Step 2: Convert to fraction form
   2,503.02/3,453.12 = 1,618.50/x
3. Step 3: Cross multiply
   2,503.02x = 3,453.12 × 1,618.50
4. Step 4: Simplify right side
   2,503.02x = 5,588,874.72
5. Step 5: Solve for x
   x = 5,588,874.72/2,503.02
6. Step 6: Final answer
   x = 2,232.85