Finding the Fourth Proportional to 2,549.30, 3,815.75 and 1,315.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,549.30 : 3,815.75 = 1,315.01 : x
2. Step 2: Convert to fraction form
   2,549.30/3,815.75 = 1,315.01/x
3. Step 3: Cross multiply
   2,549.30x = 3,815.75 × 1,315.01
4. Step 4: Simplify right side
   2,549.30x = 5,017,752.37
5. Step 5: Solve for x
   x = 5,017,752.37/2,549.30
6. Step 6: Final answer
   x = 1,968.28