Finding the Fourth Proportional to 2,405.10, 3,608.64 and 1,172.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,405.10 : 3,608.64 = 1,172.50 : x
2. Step 2: Convert to fraction form
   2,405.10/3,608.64 = 1,172.50/x
3. Step 3: Cross multiply
   2,405.10x = 3,608.64 × 1,172.50
4. Step 4: Simplify right side
   2,405.10x = 4,231,130.40
5. Step 5: Solve for x
   x = 4,231,130.40/2,405.10
6. Step 6: Final answer
   x = 1,759.23