Finding the Fourth Proportional to 2,803.12, 3,868.28 and 1,544.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,803.12 : 3,868.28 = 1,544.15 : x
2. Step 2: Convert to fraction form
   2,803.12/3,868.28 = 1,544.15/x
3. Step 3: Cross multiply
   2,803.12x = 3,868.28 × 1,544.15
4. Step 4: Simplify right side
   2,803.12x = 5,973,204.56
5. Step 5: Solve for x
   x = 5,973,204.56/2,803.12
6. Step 6: Final answer
   x = 2,130.91