Finding the Fourth Proportional to 2,485.68, 3,726.72 and 1,253.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.68 : 3,726.72 = 1,253.04 : x
2. Step 2: Convert to fraction form
   2,485.68/3,726.72 = 1,253.04/x
3. Step 3: Cross multiply
   2,485.68x = 3,726.72 × 1,253.04
4. Step 4: Simplify right side
   2,485.68x = 4,669,729.23
5. Step 5: Solve for x
   x = 4,669,729.23/2,485.68
6. Step 6: Final answer
   x = 1,878.65