Finding the Fourth Proportional to 3,505.80, 5,250.60 and 2,404.20

Step by Step Solution

1. Step 1: Write the proportion equation
   3,505.80 : 5,250.60 = 2,404.20 : x
2. Step 2: Convert to fraction form
   3,505.80/5,250.60 = 2,404.20/x
3. Step 3: Cross multiply
   3,505.80x = 5,250.60 × 2,404.20
4. Step 4: Simplify right side
   3,505.80x = 12,623,492.52
5. Step 5: Solve for x
   x = 12,623,492.52/3,505.80
6. Step 6: Final answer
   x = 3,600.75